646948920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2851}}^1$

素因数の和:2957

約数の個数: 128

約数和(自身を含む): 2037012480

約数和(自身を除く): 1390063560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 61, 62, 93, 120, 122, 124, 155, 183, 186, 244, 248, 305, 310, 366, 372, 465, 488, 610, 620, 732, 744, 915, 930, 1220, 1240, 1464, 1830, 1860, 1891, 2440, 2851, 3660, 3720, 3782, 5673, 5702, 7320, 7564, 8553, 9455, 11346, 11404, 14255, 15128, 17106, 18910, 22692, 22808, 28365, 28510, 34212, 37820, 42765, 45384, 56730, 57020, 68424, 75640, 85530, 88381, 113460, 114040, 171060, 173911, 176762, 226920, 265143, 342120, 347822, 353524, 441905, 521733, 530286, 695644, 707048, 869555, 883810, 1043466, 1060572, 1325715, 1391288, 1739110, 1767620, 2086932, 2121144, 2608665, 2651430, 3478220, 3535240, 4173864, 5217330, 5302860, 5391241, 6956440, 10434660, 10605720, 10782482, 16173723, 20869320, 21564964, 26956205, 32347446, 43129928, 53912410, 64694892, 80868615, 107824820, 129389784, 161737230, 215649640, 323474460, 646948920]

約数ペア:

[(1, 646948920), (2, 323474460), (3, 215649640), (4, 161737230), (5, 129389784), (6, 107824820), (8, 80868615), (10, 64694892), (12, 53912410), (15, 43129928), (20, 32347446), (24, 26956205), (30, 21564964), (31, 20869320), (40, 16173723), (60, 10782482), (61, 10605720), (62, 10434660), (93, 6956440), (120, 5391241), (122, 5302860), (124, 5217330), (155, 4173864), (183, 3535240), (186, 3478220), (244, 2651430), (248, 2608665), (305, 2121144), (310, 2086932), (366, 1767620), (372, 1739110), (465, 1391288), (488, 1325715), (610, 1060572), (620, 1043466), (732, 883810), (744, 869555), (915, 707048), (930, 695644), (1220, 530286), (1240, 521733), (1464, 441905), (1830, 353524), (1860, 347822), (1891, 342120), (2440, 265143), (2851, 226920), (3660, 176762), (3720, 173911), (3782, 171060), (5673, 114040), (5702, 113460), (7320, 88381), (7564, 85530), (8553, 75640), (9455, 68424), (11346, 57020), (11404, 56730), (14255, 45384), (15128, 42765), (17106, 37820), (18910, 34212), (22692, 28510), (22808, 28365)]