20801335

素因数分解:

$5^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1\times {\mathrm{659}}^1$

素因数の和:830

約数の個数: 16

約数和(自身を含む): 25660800

約数和(自身を除く): 4859465

約数列:

[1, 5, 59, 107, 295, 535, 659, 3295, 6313, 31565, 38881, 70513, 194405, 352565, 4160267, 20801335]

約数ペア:

[(1, 20801335), (5, 4160267), (59, 352565), (107, 194405), (295, 70513), (535, 38881), (659, 31565), (3295, 6313)]