2515240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{691}}^1$

素因数の和:722

約数の個数: 64

約数和(自身を含む): 6975360

約数和(自身を除く): 4460120

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 691, 728, 910, 1382, 1820, 2764, 3455, 3640, 4837, 5528, 6910, 8983, 9674, 13820, 17966, 19348, 24185, 27640, 35932, 38696, 44915, 48370, 62881, 71864, 89830, 96740, 125762, 179660, 193480, 251524, 314405, 359320, 503048, 628810, 1257620, 2515240]

約数ペア:

[(1, 2515240), (2, 1257620), (4, 628810), (5, 503048), (7, 359320), (8, 314405), (10, 251524), (13, 193480), (14, 179660), (20, 125762), (26, 96740), (28, 89830), (35, 71864), (40, 62881), (52, 48370), (56, 44915), (65, 38696), (70, 35932), (91, 27640), (104, 24185), (130, 19348), (140, 17966), (182, 13820), (260, 9674), (280, 8983), (364, 6910), (455, 5528), (520, 4837), (691, 3640), (728, 3455), (910, 2764), (1382, 1820)]