65488990

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{61}}^1\times {\mathrm{313}}^1$

素因数の和:402

約数の個数: 64

約数和(自身を含む): 140169600

約数和(自身を除く): 74680610

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 61, 70, 98, 122, 245, 305, 313, 343, 427, 490, 610, 626, 686, 854, 1565, 1715, 2135, 2191, 2989, 3130, 3430, 4270, 4382, 5978, 10955, 14945, 15337, 19093, 20923, 21910, 29890, 30674, 38186, 41846, 76685, 95465, 104615, 107359, 133651, 153370, 190930, 209230, 214718, 267302, 536795, 668255, 935557, 1073590, 1336510, 1871114, 4677785, 6548899, 9355570, 13097798, 32744495, 65488990]

約数ペア:

[(1, 65488990), (2, 32744495), (5, 13097798), (7, 9355570), (10, 6548899), (14, 4677785), (35, 1871114), (49, 1336510), (61, 1073590), (70, 935557), (98, 668255), (122, 536795), (245, 267302), (305, 214718), (313, 209230), (343, 190930), (427, 153370), (490, 133651), (610, 107359), (626, 104615), (686, 95465), (854, 76685), (1565, 41846), (1715, 38186), (2135, 30674), (2191, 29890), (2989, 21910), (3130, 20923), (3430, 19093), (4270, 15337), (4382, 14945), (5978, 10955)]