9880940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15937}}^1$

素因数の和:15977

約数の個数: 24

約数和(自身を含む): 21420672

約数和(自身を除く): 11539732

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 15937, 31874, 63748, 79685, 159370, 318740, 494047, 988094, 1976188, 2470235, 4940470, 9880940]

約数ペア:

[(1, 9880940), (2, 4940470), (4, 2470235), (5, 1976188), (10, 988094), (20, 494047), (31, 318740), (62, 159370), (124, 79685), (155, 63748), (310, 31874), (620, 15937)]