64889560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{85381}}^1$

素因数の和:85411

約数の個数: 32

約数和(自身を含む): 153687600

約数和(自身を除く): 88798040

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 85381, 170762, 341524, 426905, 683048, 853810, 1622239, 1707620, 3244478, 3415240, 6488956, 8111195, 12977912, 16222390, 32444780, 64889560]

約数ペア:

[(1, 64889560), (2, 32444780), (4, 16222390), (5, 12977912), (8, 8111195), (10, 6488956), (19, 3415240), (20, 3244478), (38, 1707620), (40, 1622239), (76, 853810), (95, 683048), (152, 426905), (190, 341524), (380, 170762), (760, 85381)]