520064920

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{32423}}^1$

素因数の和:32835

約数の個数: 32

約数和(自身を含む): 1173100320

約数和(自身を除く): 653035400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 2005, 3208, 4010, 8020, 16040, 32423, 64846, 129692, 162115, 259384, 324230, 648460, 1296920, 13001623, 26003246, 52006492, 65008115, 104012984, 130016230, 260032460, 520064920]

約数ペア:

[(1, 520064920), (2, 260032460), (4, 130016230), (5, 104012984), (8, 65008115), (10, 52006492), (20, 26003246), (40, 13001623), (401, 1296920), (802, 648460), (1604, 324230), (2005, 259384), (3208, 162115), (4010, 129692), (8020, 64846), (16040, 32423)]