81465410

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{3181}}^1$

素因数の和:3398

約数の個数: 32

約数和(自身を含む): 158769072

約数和(自身を除く): 77303662

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 197, 394, 985, 1970, 2561, 3181, 5122, 6362, 12805, 15905, 25610, 31810, 41353, 82706, 206765, 413530, 626657, 1253314, 3133285, 6266570, 8146541, 16293082, 40732705, 81465410]

約数ペア:

[(1, 81465410), (2, 40732705), (5, 16293082), (10, 8146541), (13, 6266570), (26, 3133285), (65, 1253314), (130, 626657), (197, 413530), (394, 206765), (985, 82706), (1970, 41353), (2561, 31810), (3181, 25610), (5122, 15905), (6362, 12805)]