12220895

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{653}}^1$

素因数の和:874

約数の個数: 16

約数和(自身を含む): 15539040

約数和(自身を除く): 3318145

約数列:

[1, 5, 19, 95, 197, 653, 985, 3265, 3743, 12407, 18715, 62035, 128641, 643205, 2444179, 12220895]

約数ペア:

[(1, 12220895), (5, 2444179), (19, 643205), (95, 128641), (197, 62035), (653, 18715), (985, 12407), (3265, 3743)]