290400812

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{429587}}^1$

素因数の和:429617

約数の個数: 18

約数和(自身を含む): 550302228

約数和(自身を除く): 259901416

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 429587, 859174, 1718348, 5584631, 11169262, 22338524, 72600203, 145200406, 290400812]

約数ペア:

[(1, 290400812), (2, 145200406), (4, 72600203), (13, 22338524), (26, 11169262), (52, 5584631), (169, 1718348), (338, 859174), (676, 429587)]