28272910

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{39821}}^1$

素因数の和:39899

約数の個数: 16

約数和(自身を含む): 51609312

約数和(自身を除く): 23336402

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 39821, 79642, 199105, 398210, 2827291, 5654582, 14136455, 28272910]

約数ペア:

[(1, 28272910), (2, 14136455), (5, 5654582), (10, 2827291), (71, 398210), (142, 199105), (355, 79642), (710, 39821)]