426920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{821}}^1$

素因数の和:845

約数の個数: 32

約数和(自身を含む): 1035720

約数和(自身を除く): 608800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 821, 1642, 3284, 4105, 6568, 8210, 10673, 16420, 21346, 32840, 42692, 53365, 85384, 106730, 213460, 426920]

約数ペア:

[(1, 426920), (2, 213460), (4, 106730), (5, 85384), (8, 53365), (10, 42692), (13, 32840), (20, 21346), (26, 16420), (40, 10673), (52, 8210), (65, 6568), (104, 4105), (130, 3284), (260, 1642), (520, 821)]