72645820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{279407}}^1$

素因数の和:279429

約数の個数: 24

約数和(自身を含む): 164291904

約数和(自身を除く): 91646084

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 279407, 558814, 1117628, 1397035, 2794070, 3632291, 5588140, 7264582, 14529164, 18161455, 36322910, 72645820]

約数ペア:

[(1, 72645820), (2, 36322910), (4, 18161455), (5, 14529164), (10, 7264582), (13, 5588140), (20, 3632291), (26, 2794070), (52, 1397035), (65, 1117628), (130, 558814), (260, 279407)]