20561610620

素因数分解:

$2^2\times 5^1\times {\mathrm{1013}}^1\times {\mathrm{1014887}}^1$

素因数の和:1015909

約数の個数: 24

約数和(自身を含む): 43222050144

約数和(自身を除く): 22660439524

約数列:

[1, 2, 4, 5, 10, 20, 1013, 2026, 4052, 5065, 10130, 20260, 1014887, 2029774, 4059548, 5074435, 10148870, 20297740, 1028080531, 2056161062, 4112322124, 5140402655, 10280805310, 20561610620]

約数ペア:

[(1, 20561610620), (2, 10280805310), (4, 5140402655), (5, 4112322124), (10, 2056161062), (20, 1028080531), (1013, 20297740), (2026, 10148870), (4052, 5074435), (5065, 4059548), (10130, 2029774), (20260, 1014887)]