20561430

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{685381}}^1$

素因数の和:685391

約数の個数: 16

約数和(自身を含む): 49347504

約数和(自身を除く): 28786074

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 685381, 1370762, 2056143, 3426905, 4112286, 6853810, 10280715, 20561430]

約数ペア:

[(1, 20561430), (2, 10280715), (3, 6853810), (5, 4112286), (6, 3426905), (10, 2056143), (15, 1370762), (30, 685381)]