20804978305

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{661}}^1\times {\mathrm{217069}}^1$

素因数の和:217764

約数の個数: 16

約数和(自身を含む): 25866061200

約数和(自身を除く): 5061082895

約数列:

[1, 5, 29, 145, 661, 3305, 19169, 95845, 217069, 1085345, 6295001, 31475005, 143482609, 717413045, 4160995661, 20804978305]

約数ペア:

[(1, 20804978305), (5, 4160995661), (29, 717413045), (145, 143482609), (661, 31475005), (3305, 6295001), (19169, 1085345), (95845, 217069)]