77998910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{521}}^1\times {\mathrm{1361}}^1$

素因数の和:1900

約数の個数: 32

約数和(自身を含む): 153568224

約数和(自身を除く): 75569314

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 521, 1042, 1361, 2605, 2722, 5210, 5731, 6805, 11462, 13610, 14971, 28655, 29942, 57310, 74855, 149710, 709081, 1418162, 3545405, 7090810, 7799891, 15599782, 38999455, 77998910]

約数ペア:

[(1, 77998910), (2, 38999455), (5, 15599782), (10, 7799891), (11, 7090810), (22, 3545405), (55, 1418162), (110, 709081), (521, 149710), (1042, 74855), (1361, 57310), (2605, 29942), (2722, 28655), (5210, 14971), (5731, 13610), (6805, 11462)]