20403860

素因数分解:

$2^2\times 5^1\times {\mathrm{461}}^1\times {\mathrm{2213}}^1$

素因数の和:2683

約数の個数: 24

約数和(自身を含む): 42960456

約数和(自身を除く): 22556596

約数列:

[1, 2, 4, 5, 10, 20, 461, 922, 1844, 2213, 2305, 4426, 4610, 8852, 9220, 11065, 22130, 44260, 1020193, 2040386, 4080772, 5100965, 10201930, 20403860]

約数ペア:

[(1, 20403860), (2, 10201930), (4, 5100965), (5, 4080772), (10, 2040386), (20, 1020193), (461, 44260), (922, 22130), (1844, 11065), (2213, 9220), (2305, 8852), (4426, 4610)]