18900830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{145391}}^1$

素因数の和:145411

約数の個数: 16

約数和(自身を含む): 36638784

約数和(自身を除く): 17737954

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 145391, 290782, 726955, 1453910, 1890083, 3780166, 9450415, 18900830]

約数ペア:

[(1, 18900830), (2, 9450415), (5, 3780166), (10, 1890083), (13, 1453910), (26, 726955), (65, 290782), (130, 145391)]