20222578

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1\times {\mathrm{859}}^1$

素因数の和:1089

約数の個数: 16

約数和(自身を含む): 30960000

約数和(自身を除く): 10737422

約数列:

[1, 2, 79, 149, 158, 298, 859, 1718, 11771, 23542, 67861, 127991, 135722, 255982, 10111289, 20222578]

約数ペア:

[(1, 20222578), (2, 10111289), (79, 255982), (149, 135722), (158, 127991), (298, 67861), (859, 23542), (1718, 11771)]