20459830

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47581}}^1$

素因数の和:47631

約数の個数: 16

約数和(自身を含む): 37684944

約数和(自身を除く): 17225114

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 47581, 95162, 237905, 475810, 2045983, 4091966, 10229915, 20459830]

約数ペア:

[(1, 20459830), (2, 10229915), (5, 4091966), (10, 2045983), (43, 475810), (86, 237905), (215, 95162), (430, 47581)]