78870987

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 128095968

約数和(自身を除く): 49224981

約数列:

[1, 3, 9, 13, 39, 43, 61, 117, 129, 183, 257, 387, 549, 559, 771, 793, 1677, 2313, 2379, 2623, 3341, 5031, 7137, 7869, 10023, 11051, 15677, 23607, 30069, 33153, 34099, 47031, 99459, 102297, 141093, 143663, 203801, 306891, 430989, 611403, 674111, 1292967, 1834209, 2022333, 6066999, 8763443, 26290329, 78870987]

約数ペア:

[(1, 78870987), (3, 26290329), (9, 8763443), (13, 6066999), (39, 2022333), (43, 1834209), (61, 1292967), (117, 674111), (129, 611403), (183, 430989), (257, 306891), (387, 203801), (549, 143663), (559, 141093), (771, 102297), (793, 99459), (1677, 47031), (2313, 34099), (2379, 33153), (2623, 30069), (3341, 23607), (5031, 15677), (7137, 11051), (7869, 10023)]