64970680

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{22877}}^1$

素因数の和:22959

約数の個数: 32

約数和(自身を含む): 148249440

約数和(自身を除く): 83278760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 22877, 45754, 91508, 114385, 183016, 228770, 457540, 915080, 1624267, 3248534, 6497068, 8121335, 12994136, 16242670, 32485340, 64970680]

約数ペア:

[(1, 64970680), (2, 32485340), (4, 16242670), (5, 12994136), (8, 8121335), (10, 6497068), (20, 3248534), (40, 1624267), (71, 915080), (142, 457540), (284, 228770), (355, 183016), (568, 114385), (710, 91508), (1420, 45754), (2840, 22877)]