56754280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{128987}}^1$

素因数の和:129009

約数の個数: 32

約数和(自身を含む): 139307040

約数和(自身を除く): 82552760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 128987, 257974, 515948, 644935, 1031896, 1289870, 1418857, 2579740, 2837714, 5159480, 5675428, 7094285, 11350856, 14188570, 28377140, 56754280]

約数ペア:

[(1, 56754280), (2, 28377140), (4, 14188570), (5, 11350856), (8, 7094285), (10, 5675428), (11, 5159480), (20, 2837714), (22, 2579740), (40, 1418857), (44, 1289870), (55, 1031896), (88, 644935), (110, 515948), (220, 257974), (440, 128987)]