209025808

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{421423}}^1$

素因数の和:421462

約数の個数: 20

約数和(自身を含む): 418052608

約数和(自身を除く): 209026800

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 421423, 842846, 1685692, 3371384, 6742768, 13064113, 26128226, 52256452, 104512904, 209025808]

約数ペア:

[(1, 209025808), (2, 104512904), (4, 52256452), (8, 26128226), (16, 13064113), (31, 6742768), (62, 3371384), (124, 1685692), (248, 842846), (496, 421423)]