123258040

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{29917}}^1$

素因数の和:30031

約数の個数: 32

約数和(自身を含む): 280032480

約数和(自身を除く): 156774440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 29917, 59834, 119668, 149585, 239336, 299170, 598340, 1196680, 3081451, 6162902, 12325804, 15407255, 24651608, 30814510, 61629020, 123258040]

約数ペア:

[(1, 123258040), (2, 61629020), (4, 30814510), (5, 24651608), (8, 15407255), (10, 12325804), (20, 6162902), (40, 3081451), (103, 1196680), (206, 598340), (412, 299170), (515, 239336), (824, 149585), (1030, 119668), (2060, 59834), (4120, 29917)]