71880848

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{345581}}^1$

素因数の和:345602

約数の個数: 20

約数和(自身を含む): 149982588

約数和(自身を除く): 78101740

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 345581, 691162, 1382324, 2764648, 4492553, 5529296, 8985106, 17970212, 35940424, 71880848]

約数ペア:

[(1, 71880848), (2, 35940424), (4, 17970212), (8, 8985106), (13, 5529296), (16, 4492553), (26, 2764648), (52, 1382324), (104, 691162), (208, 345581)]