320972665

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{290473}}^1$

素因数の和:290508

約数の個数: 16

約数和(自身を含む): 439196688

約数和(自身を除く): 118224023

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 290473, 1452365, 3776149, 4938041, 18880745, 24690205, 64194533, 320972665]

約数ペア:

[(1, 320972665), (5, 64194533), (13, 24690205), (17, 18880745), (65, 4938041), (85, 3776149), (221, 1452365), (1105, 290473)]