20717221575

素因数分解:

$3^1\times 5^2\times {\mathrm{241}}^1\times {\mathrm{881}}^1\times {\mathrm{1301}}^1$

素因数の和:2436

約数の個数: 48

約数和(自身を含む): 34460106912

約数和(自身を除く): 13742885337

約数列:

[1, 3, 5, 15, 25, 75, 241, 723, 881, 1205, 1301, 2643, 3615, 3903, 4405, 6025, 6505, 13215, 18075, 19515, 22025, 32525, 66075, 97575, 212321, 313541, 636963, 940623, 1061605, 1146181, 1567705, 3184815, 3438543, 4703115, 5308025, 5730905, 7838525, 15924075, 17192715, 23515575, 28654525, 85963575, 276229621, 828688863, 1381148105, 4143444315, 6905740525, 20717221575]

約数ペア:

[(1, 20717221575), (3, 6905740525), (5, 4143444315), (15, 1381148105), (25, 828688863), (75, 276229621), (241, 85963575), (723, 28654525), (881, 23515575), (1205, 17192715), (1301, 15924075), (2643, 7838525), (3615, 5730905), (3903, 5308025), (4405, 4703115), (6025, 3438543), (6505, 3184815), (13215, 1567705), (18075, 1146181), (19515, 1061605), (22025, 940623), (32525, 636963), (66075, 313541), (97575, 212321)]