20920195

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{971}}^1$

素因数の和:1146

約数の個数: 16

約数和(自身を含む): 26127360

約数和(自身を除く): 5207165

約数列:

[1, 5, 31, 139, 155, 695, 971, 4309, 4855, 21545, 30101, 134969, 150505, 674845, 4184039, 20920195]

約数ペア:

[(1, 20920195), (5, 4184039), (31, 674845), (139, 150505), (155, 134969), (695, 30101), (971, 21545), (4309, 4855)]