661432755

素因数分解:

$3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{409}}^1\times {\mathrm{823}}^1$

素因数の和:1371

約数の個数: 32

約数和(自身を含む): 1070277120

約数和(自身を除く): 408844365

約数列:

[1, 3, 5, 15, 131, 393, 409, 655, 823, 1227, 1965, 2045, 2469, 4115, 6135, 12345, 53579, 107813, 160737, 267895, 323439, 336607, 539065, 803685, 1009821, 1617195, 1683035, 5049105, 44095517, 132286551, 220477585, 661432755]

約数ペア:

[(1, 661432755), (3, 220477585), (5, 132286551), (15, 44095517), (131, 5049105), (393, 1683035), (409, 1617195), (655, 1009821), (823, 803685), (1227, 539065), (1965, 336607), (2045, 323439), (2469, 267895), (4115, 160737), (6135, 107813), (12345, 53579)]