420968

素因数分解:

$2^3\times {\mathrm{101}}^1\times {\mathrm{521}}^1$

素因数の和:628

約数の個数: 16

約数和(自身を含む): 798660

約数和(自身を除く): 377692

約数列:

[1, 2, 4, 8, 101, 202, 404, 521, 808, 1042, 2084, 4168, 52621, 105242, 210484, 420968]

約数ペア:

[(1, 420968), (2, 210484), (4, 105242), (8, 52621), (101, 4168), (202, 2084), (404, 1042), (521, 808)]