408460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1571}}^1$

素因数の和:1593

約数の個数: 24

約数和(自身を含む): 924336

約数和(自身を除く): 515876

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1571, 3142, 6284, 7855, 15710, 20423, 31420, 40846, 81692, 102115, 204230, 408460]

約数ペア:

[(1, 408460), (2, 204230), (4, 102115), (5, 81692), (10, 40846), (13, 31420), (20, 20423), (26, 15710), (52, 7855), (65, 6284), (130, 3142), (260, 1571)]