664943395

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{601}}^1\times {\mathrm{2801}}^1$

素因数の和:3486

約数の個数: 16

約数和(自身を含む): 809665920

約数和(自身を除く): 144722525

約数列:

[1, 5, 79, 395, 601, 2801, 3005, 14005, 47479, 221279, 237395, 1106395, 1683401, 8417005, 132988679, 664943395]

約数ペア:

[(1, 664943395), (5, 132988679), (79, 8417005), (395, 1683401), (601, 1106395), (2801, 237395), (3005, 221279), (14005, 47479)]