56881240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109387}}^1$

素因数の和:109411

約数の個数: 32

約数和(自身を含む): 137828880

約数和(自身を除く): 80947640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 109387, 218774, 437548, 546935, 875096, 1093870, 1422031, 2187740, 2844062, 4375480, 5688124, 7110155, 11376248, 14220310, 28440620, 56881240]

約数ペア:

[(1, 56881240), (2, 28440620), (4, 14220310), (5, 11376248), (8, 7110155), (10, 5688124), (13, 4375480), (20, 2844062), (26, 2187740), (40, 1422031), (52, 1093870), (65, 875096), (104, 546935), (130, 437548), (260, 218774), (520, 109387)]