256428900

素因数分解:

$2^2\times 3^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:172

約数の個数: 432

約数和(自身を含む): 1031267328

約数和(自身を除く): 774838428

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 25, 26, 28, 30, 31, 35, 36, 39, 42, 45, 50, 52, 60, 62, 63, 65, 70, 75, 78, 84, 90, 91, 93, 100, 101, 105, 117, 124, 126, 130, 140, 150, 155, 156, 175, 180, 182, 186, 195, 202, 210, 217, 225, 234, 252, 260, 273, 279, 300, 303, 310, 315, 325, 350, 364, 372, 390, 403, 404, 420, 434, 450, 455, 465, 468, 505, 525, 546, 558, 585, 606, 620, 630, 650, 651, 700, 707, 775, 780, 806, 819, 868, 900, 909, 910, 930, 975, 1010, 1050, 1085, 1092, 1116, 1170, 1209, 1212, 1260, 1300, 1302, 1313, 1365, 1395, 1414, 1515, 1550, 1575, 1612, 1638, 1818, 1820, 1860, 1950, 1953, 2015, 2020, 2100, 2121, 2170, 2275, 2325, 2340, 2418, 2525, 2604, 2626, 2730, 2790, 2821, 2828, 2925, 3030, 3100, 3131, 3150, 3255, 3276, 3535, 3627, 3636, 3900, 3906, 3939, 4030, 4095, 4242, 4340, 4545, 4550, 4650, 4836, 5050, 5252, 5425, 5460, 5580, 5642, 5850, 6045, 6060, 6262, 6300, 6363, 6510, 6565, 6825, 6975, 7070, 7254, 7575, 7812, 7878, 8060, 8190, 8463, 8484, 9090, 9100, 9191, 9300, 9393, 9765, 10075, 10100, 10605, 10850, 11284, 11700, 11817, 12090, 12524, 12726, 13020, 13130, 13650, 13950, 14105, 14140, 14508, 15150, 15655, 15756, 16275, 16380, 16926, 17675, 18135, 18180, 18382, 18786, 19530, 19695, 20150, 20475, 21210, 21700, 21917, 22725, 23634, 24180, 25389, 25452, 26260, 27300, 27573, 27900, 28179, 28210, 30225, 30300, 31310, 31815, 32550, 32825, 33852, 35350, 36270, 36764, 37572, 39060, 39390, 40300, 40703, 40950, 42315, 42420, 43834, 45450, 45955, 46965, 47268, 48825, 50778, 53025, 55146, 56358, 56420, 59085, 60450, 62620, 63630, 65100, 65650, 65751, 70525, 70700, 72540, 78275, 78780, 81406, 81900, 82719, 84630, 87668, 90675, 90900, 91910, 93930, 97650, 98475, 101556, 106050, 109585, 110292, 112716, 118170, 120900, 122109, 126945, 127260, 131300, 131502, 137865, 140895, 141050, 156550, 159075, 162812, 165438, 169260, 181350, 183820, 187860, 195300, 196950, 197253, 203515, 211575, 212100, 219170, 229775, 234825, 236340, 244218, 253890, 263004, 275730, 281790, 282100, 284921, 295425, 313100, 318150, 328755, 330876, 362700, 366327, 393900, 394506, 407030, 413595, 423150, 438340, 459550, 469650, 488436, 507780, 547925, 551460, 563580, 569842, 590850, 610545, 634725, 636300, 657510, 689325, 704475, 732654, 789012, 814060, 827190, 846300, 854763, 919100, 939300, 986265, 1017575, 1095850, 1139684, 1181700, 1221090, 1269450, 1315020, 1378650, 1408950, 1424605, 1465308, 1643775, 1654380, 1709526, 1831635, 1972530, 2035150, 2067975, 2191700, 2442180, 2538900, 2564289, 2757300, 2817900, 2849210, 3052725, 3287550, 3419052, 3663270, 3945060, 4070300, 4135950, 4273815, 4931325, 5128578, 5698420, 6105450, 6575100, 7123025, 7326540, 8271900, 8547630, 9158175, 9862650, 10257156, 12210900, 12821445, 14246050, 17095260, 18316350, 19725300, 21369075, 25642890, 28492100, 36632700, 42738150, 51285780, 64107225, 85476300, 128214450, 256428900]

約数ペア:

[(1, 256428900), (2, 128214450), (3, 85476300), (4, 64107225), (5, 51285780), (6, 42738150), (7, 36632700), (9, 28492100), (10, 25642890), (12, 21369075), (13, 19725300), (14, 18316350), (15, 17095260), (18, 14246050), (20, 12821445), (21, 12210900), (25, 10257156), (26, 9862650), (28, 9158175), (30, 8547630), (31, 8271900), (35, 7326540), (36, 7123025), (39, 6575100), (42, 6105450), (45, 5698420), (50, 5128578), (52, 4931325), (60, 4273815), (62, 4135950), (63, 4070300), (65, 3945060), (70, 3663270), (75, 3419052), (78, 3287550), (84, 3052725), (90, 2849210), (91, 2817900), (93, 2757300), (100, 2564289), (101, 2538900), (105, 2442180), (117, 2191700), (124, 2067975), (126, 2035150), (130, 1972530), (140, 1831635), (150, 1709526), (155, 1654380), (156, 1643775), (175, 1465308), (180, 1424605), (182, 1408950), (186, 1378650), (195, 1315020), (202, 1269450), (210, 1221090), (217, 1181700), (225, 1139684), (234, 1095850), (252, 1017575), (260, 986265), (273, 939300), (279, 919100), (300, 854763), (303, 846300), (310, 827190), (315, 814060), (325, 789012), (350, 732654), (364, 704475), (372, 689325), (390, 657510), (403, 636300), (404, 634725), (420, 610545), (434, 590850), (450, 569842), (455, 563580), (465, 551460), (468, 547925), (505, 507780), (525, 488436), (546, 469650), (558, 459550), (585, 438340), (606, 423150), (620, 413595), (630, 407030), (650, 394506), (651, 393900), (700, 366327), (707, 362700), (775, 330876), (780, 328755), (806, 318150), (819, 313100), (868, 295425), (900, 284921), (909, 282100), (910, 281790), (930, 275730), (975, 263004), (1010, 253890), (1050, 244218), (1085, 236340), (1092, 234825), (1116, 229775), (1170, 219170), (1209, 212100), (1212, 211575), (1260, 203515), (1300, 197253), (1302, 196950), (1313, 195300), (1365, 187860), (1395, 183820), (1414, 181350), (1515, 169260), (1550, 165438), (1575, 162812), (1612, 159075), (1638, 156550), (1818, 141050), (1820, 140895), (1860, 137865), (1950, 131502), (1953, 131300), (2015, 127260), (2020, 126945), (2100, 122109), (2121, 120900), (2170, 118170), (2275, 112716), (2325, 110292), (2340, 109585), (2418, 106050), (2525, 101556), (2604, 98475), (2626, 97650), (2730, 93930), (2790, 91910), (2821, 90900), (2828, 90675), (2925, 87668), (3030, 84630), (3100, 82719), (3131, 81900), (3150, 81406), (3255, 78780), (3276, 78275), (3535, 72540), (3627, 70700), (3636, 70525), (3900, 65751), (3906, 65650), (3939, 65100), (4030, 63630), (4095, 62620), (4242, 60450), (4340, 59085), (4545, 56420), (4550, 56358), (4650, 55146), (4836, 53025), (5050, 50778), (5252, 48825), (5425, 47268), (5460, 46965), (5580, 45955), (5642, 45450), (5850, 43834), (6045, 42420), (6060, 42315), (6262, 40950), (6300, 40703), (6363, 40300), (6510, 39390), (6565, 39060), (6825, 37572), (6975, 36764), (7070, 36270), (7254, 35350), (7575, 33852), (7812, 32825), (7878, 32550), (8060, 31815), (8190, 31310), (8463, 30300), (8484, 30225), (9090, 28210), (9100, 28179), (9191, 27900), (9300, 27573), (9393, 27300), (9765, 26260), (10075, 25452), (10100, 25389), (10605, 24180), (10850, 23634), (11284, 22725), (11700, 21917), (11817, 21700), (12090, 21210), (12524, 20475), (12726, 20150), (13020, 19695), (13130, 19530), (13650, 18786), (13950, 18382), (14105, 18180), (14140, 18135), (14508, 17675), (15150, 16926), (15655, 16380), (15756, 16275)]