211025620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{811637}}^1$

素因数の和:811659

約数の個数: 24

約数和(自身を含む): 477243144

約数和(自身を除く): 266217524

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 811637, 1623274, 3246548, 4058185, 8116370, 10551281, 16232740, 21102562, 42205124, 52756405, 105512810, 211025620]

約数ペア:

[(1, 211025620), (2, 105512810), (4, 52756405), (5, 42205124), (10, 21102562), (13, 16232740), (20, 10551281), (26, 8116370), (52, 4058185), (65, 3246548), (130, 1623274), (260, 811637)]