220148240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211681}}^1$

素因数の和:211707

約数の個数: 40

約数和(自身を含む): 551219928

約数和(自身を除く): 331071688

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 211681, 423362, 846724, 1058405, 1693448, 2116810, 2751853, 3386896, 4233620, 5503706, 8467240, 11007412, 13759265, 16934480, 22014824, 27518530, 44029648, 55037060, 110074120, 220148240]

約数ペア:

[(1, 220148240), (2, 110074120), (4, 55037060), (5, 44029648), (8, 27518530), (10, 22014824), (13, 16934480), (16, 13759265), (20, 11007412), (26, 8467240), (40, 5503706), (52, 4233620), (65, 3386896), (80, 2751853), (104, 2116810), (130, 1693448), (208, 1058405), (260, 846724), (520, 423362), (1040, 211681)]