161812560

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:306

約数の個数: 320

約数和(自身を含む): 639959040

約数和(自身を除く): 478146480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 31, 35, 39, 40, 42, 48, 52, 56, 60, 62, 65, 70, 78, 80, 84, 91, 93, 104, 105, 112, 120, 124, 130, 140, 155, 156, 168, 182, 186, 195, 208, 210, 217, 239, 240, 248, 260, 273, 280, 310, 312, 336, 364, 372, 390, 403, 420, 434, 455, 465, 478, 496, 520, 546, 560, 620, 624, 651, 717, 728, 744, 780, 806, 840, 868, 910, 930, 956, 1040, 1085, 1092, 1195, 1209, 1240, 1302, 1365, 1434, 1456, 1488, 1560, 1612, 1673, 1680, 1736, 1820, 1860, 1912, 2015, 2170, 2184, 2390, 2418, 2480, 2604, 2730, 2821, 2868, 3107, 3120, 3224, 3255, 3346, 3472, 3585, 3640, 3720, 3824, 4030, 4340, 4368, 4780, 4836, 5019, 5208, 5460, 5642, 5736, 6045, 6214, 6448, 6510, 6692, 7170, 7280, 7409, 7440, 8060, 8365, 8463, 8680, 9321, 9560, 9672, 10038, 10416, 10920, 11284, 11472, 12090, 12428, 13020, 13384, 14105, 14340, 14818, 15535, 16120, 16730, 16926, 17360, 18642, 19120, 19344, 20076, 21749, 21840, 22227, 22568, 24180, 24856, 25095, 26040, 26768, 28210, 28680, 29636, 31070, 32240, 33460, 33852, 37045, 37284, 40152, 42315, 43498, 44454, 45136, 46605, 48360, 49712, 50190, 51863, 52080, 56420, 57360, 59272, 62140, 65247, 66920, 67704, 74090, 74568, 80304, 84630, 86996, 88908, 93210, 96317, 96720, 100380, 103726, 108745, 111135, 112840, 118544, 124280, 130494, 133840, 135408, 148180, 149136, 155589, 169260, 173992, 177816, 186420, 192634, 200760, 207452, 217490, 222270, 225680, 248560, 259315, 260988, 288951, 296360, 311178, 326235, 338520, 347984, 355632, 372840, 385268, 401520, 414904, 434980, 444540, 481585, 518630, 521976, 577902, 592720, 622356, 652470, 674219, 677040, 745680, 770536, 777945, 829808, 869960, 889080, 963170, 1037260, 1043952, 1155804, 1244712, 1304940, 1348438, 1444755, 1541072, 1555890, 1739920, 1778160, 1926340, 2022657, 2074520, 2311608, 2489424, 2609880, 2696876, 2889510, 3111780, 3371095, 3852680, 4045314, 4149040, 4623216, 5219760, 5393752, 5779020, 6223560, 6742190, 7705360, 8090628, 10113285, 10787504, 11558040, 12447120, 13484380, 16181256, 20226570, 23116080, 26968760, 32362512, 40453140, 53937520, 80906280, 161812560]

約数ペア:

[(1, 161812560), (2, 80906280), (3, 53937520), (4, 40453140), (5, 32362512), (6, 26968760), (7, 23116080), (8, 20226570), (10, 16181256), (12, 13484380), (13, 12447120), (14, 11558040), (15, 10787504), (16, 10113285), (20, 8090628), (21, 7705360), (24, 6742190), (26, 6223560), (28, 5779020), (30, 5393752), (31, 5219760), (35, 4623216), (39, 4149040), (40, 4045314), (42, 3852680), (48, 3371095), (52, 3111780), (56, 2889510), (60, 2696876), (62, 2609880), (65, 2489424), (70, 2311608), (78, 2074520), (80, 2022657), (84, 1926340), (91, 1778160), (93, 1739920), (104, 1555890), (105, 1541072), (112, 1444755), (120, 1348438), (124, 1304940), (130, 1244712), (140, 1155804), (155, 1043952), (156, 1037260), (168, 963170), (182, 889080), (186, 869960), (195, 829808), (208, 777945), (210, 770536), (217, 745680), (239, 677040), (240, 674219), (248, 652470), (260, 622356), (273, 592720), (280, 577902), (310, 521976), (312, 518630), (336, 481585), (364, 444540), (372, 434980), (390, 414904), (403, 401520), (420, 385268), (434, 372840), (455, 355632), (465, 347984), (478, 338520), (496, 326235), (520, 311178), (546, 296360), (560, 288951), (620, 260988), (624, 259315), (651, 248560), (717, 225680), (728, 222270), (744, 217490), (780, 207452), (806, 200760), (840, 192634), (868, 186420), (910, 177816), (930, 173992), (956, 169260), (1040, 155589), (1085, 149136), (1092, 148180), (1195, 135408), (1209, 133840), (1240, 130494), (1302, 124280), (1365, 118544), (1434, 112840), (1456, 111135), (1488, 108745), (1560, 103726), (1612, 100380), (1673, 96720), (1680, 96317), (1736, 93210), (1820, 88908), (1860, 86996), (1912, 84630), (2015, 80304), (2170, 74568), (2184, 74090), (2390, 67704), (2418, 66920), (2480, 65247), (2604, 62140), (2730, 59272), (2821, 57360), (2868, 56420), (3107, 52080), (3120, 51863), (3224, 50190), (3255, 49712), (3346, 48360), (3472, 46605), (3585, 45136), (3640, 44454), (3720, 43498), (3824, 42315), (4030, 40152), (4340, 37284), (4368, 37045), (4780, 33852), (4836, 33460), (5019, 32240), (5208, 31070), (5460, 29636), (5642, 28680), (5736, 28210), (6045, 26768), (6214, 26040), (6448, 25095), (6510, 24856), (6692, 24180), (7170, 22568), (7280, 22227), (7409, 21840), (7440, 21749), (8060, 20076), (8365, 19344), (8463, 19120), (8680, 18642), (9321, 17360), (9560, 16926), (9672, 16730), (10038, 16120), (10416, 15535), (10920, 14818), (11284, 14340), (11472, 14105), (12090, 13384), (12428, 13020)]