28228460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{108571}}^1$

素因数の和:108593

約数の個数: 24

約数和(自身を含む): 63840336

約数和(自身を除く): 35611876

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 108571, 217142, 434284, 542855, 1085710, 1411423, 2171420, 2822846, 5645692, 7057115, 14114230, 28228460]

約数ペア:

[(1, 28228460), (2, 14114230), (4, 7057115), (5, 5645692), (10, 2822846), (13, 2171420), (20, 1411423), (26, 1085710), (52, 542855), (65, 434284), (130, 217142), (260, 108571)]