81849820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{314807}}^1$

素因数の和:314829

約数の個数: 24

約数和(自身を含む): 185107104

約数和(自身を除く): 103257284

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 314807, 629614, 1259228, 1574035, 3148070, 4092491, 6296140, 8184982, 16369964, 20462455, 40924910, 81849820]

約数ペア:

[(1, 81849820), (2, 40924910), (4, 20462455), (5, 16369964), (10, 8184982), (13, 6296140), (20, 4092491), (26, 3148070), (52, 1574035), (65, 1259228), (130, 629614), (260, 314807)]