281570520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{983}}^1$

素因数の和:1046

約数の個数: 256

約数和(自身を含む): 1088225280

約数和(自身を除く): 806654760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 31, 33, 35, 40, 42, 44, 55, 56, 60, 62, 66, 70, 77, 84, 88, 93, 105, 110, 120, 124, 132, 140, 154, 155, 165, 168, 186, 210, 217, 220, 231, 248, 264, 280, 308, 310, 330, 341, 372, 385, 420, 434, 440, 462, 465, 616, 620, 651, 660, 682, 744, 770, 840, 868, 924, 930, 983, 1023, 1085, 1155, 1240, 1302, 1320, 1364, 1540, 1705, 1736, 1848, 1860, 1966, 2046, 2170, 2310, 2387, 2604, 2728, 2949, 3080, 3255, 3410, 3720, 3932, 4092, 4340, 4620, 4774, 4915, 5115, 5208, 5898, 6510, 6820, 6881, 7161, 7864, 8184, 8680, 9240, 9548, 9830, 10230, 10813, 11796, 11935, 13020, 13640, 13762, 14322, 14745, 19096, 19660, 20460, 20643, 21626, 23592, 23870, 26040, 27524, 28644, 29490, 30473, 32439, 34405, 35805, 39320, 40920, 41286, 43252, 47740, 54065, 55048, 57288, 58980, 60946, 64878, 68810, 71610, 75691, 82572, 86504, 91419, 95480, 103215, 108130, 117960, 121892, 129756, 137620, 143220, 151382, 152365, 162195, 165144, 182838, 206430, 213311, 216260, 227073, 243784, 259512, 275240, 286440, 302764, 304730, 324390, 335203, 365676, 378455, 412860, 426622, 432520, 454146, 457095, 605528, 609460, 639933, 648780, 670406, 731352, 756910, 825720, 853244, 908292, 914190, 1005609, 1066555, 1135365, 1218920, 1279866, 1297560, 1340812, 1513820, 1676015, 1706488, 1816584, 1828380, 2011218, 2133110, 2270730, 2346421, 2559732, 2681624, 3027640, 3199665, 3352030, 3656760, 4022436, 4266220, 4541460, 4692842, 5028045, 5119464, 6399330, 6704060, 7039263, 8044872, 8532440, 9082920, 9385684, 10056090, 11732105, 12798660, 13408120, 14078526, 18771368, 20112180, 23464210, 25597320, 28157052, 35196315, 40224360, 46928420, 56314104, 70392630, 93856840, 140785260, 281570520]

約数ペア:

[(1, 281570520), (2, 140785260), (3, 93856840), (4, 70392630), (5, 56314104), (6, 46928420), (7, 40224360), (8, 35196315), (10, 28157052), (11, 25597320), (12, 23464210), (14, 20112180), (15, 18771368), (20, 14078526), (21, 13408120), (22, 12798660), (24, 11732105), (28, 10056090), (30, 9385684), (31, 9082920), (33, 8532440), (35, 8044872), (40, 7039263), (42, 6704060), (44, 6399330), (55, 5119464), (56, 5028045), (60, 4692842), (62, 4541460), (66, 4266220), (70, 4022436), (77, 3656760), (84, 3352030), (88, 3199665), (93, 3027640), (105, 2681624), (110, 2559732), (120, 2346421), (124, 2270730), (132, 2133110), (140, 2011218), (154, 1828380), (155, 1816584), (165, 1706488), (168, 1676015), (186, 1513820), (210, 1340812), (217, 1297560), (220, 1279866), (231, 1218920), (248, 1135365), (264, 1066555), (280, 1005609), (308, 914190), (310, 908292), (330, 853244), (341, 825720), (372, 756910), (385, 731352), (420, 670406), (434, 648780), (440, 639933), (462, 609460), (465, 605528), (616, 457095), (620, 454146), (651, 432520), (660, 426622), (682, 412860), (744, 378455), (770, 365676), (840, 335203), (868, 324390), (924, 304730), (930, 302764), (983, 286440), (1023, 275240), (1085, 259512), (1155, 243784), (1240, 227073), (1302, 216260), (1320, 213311), (1364, 206430), (1540, 182838), (1705, 165144), (1736, 162195), (1848, 152365), (1860, 151382), (1966, 143220), (2046, 137620), (2170, 129756), (2310, 121892), (2387, 117960), (2604, 108130), (2728, 103215), (2949, 95480), (3080, 91419), (3255, 86504), (3410, 82572), (3720, 75691), (3932, 71610), (4092, 68810), (4340, 64878), (4620, 60946), (4774, 58980), (4915, 57288), (5115, 55048), (5208, 54065), (5898, 47740), (6510, 43252), (6820, 41286), (6881, 40920), (7161, 39320), (7864, 35805), (8184, 34405), (8680, 32439), (9240, 30473), (9548, 29490), (9830, 28644), (10230, 27524), (10813, 26040), (11796, 23870), (11935, 23592), (13020, 21626), (13640, 20643), (13762, 20460), (14322, 19660), (14745, 19096)]