31689320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{409}}^1$

素因数の和:582

約数の個数: 64

約数和(自身を含む): 77490000

約数和(自身を除く): 45800680

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 149, 260, 298, 409, 520, 596, 745, 818, 1192, 1490, 1636, 1937, 2045, 2980, 3272, 3874, 4090, 5317, 5960, 7748, 8180, 9685, 10634, 15496, 16360, 19370, 21268, 26585, 38740, 42536, 53170, 60941, 77480, 106340, 121882, 212680, 243764, 304705, 487528, 609410, 792233, 1218820, 1584466, 2437640, 3168932, 3961165, 6337864, 7922330, 15844660, 31689320]

約数ペア:

[(1, 31689320), (2, 15844660), (4, 7922330), (5, 6337864), (8, 3961165), (10, 3168932), (13, 2437640), (20, 1584466), (26, 1218820), (40, 792233), (52, 609410), (65, 487528), (104, 304705), (130, 243764), (149, 212680), (260, 121882), (298, 106340), (409, 77480), (520, 60941), (596, 53170), (745, 42536), (818, 38740), (1192, 26585), (1490, 21268), (1636, 19370), (1937, 16360), (2045, 15496), (2980, 10634), (3272, 9685), (3874, 8180), (4090, 7748), (5317, 5960)]