86665960

素因数分解:

$2^3\times 5^1\times {\mathrm{419}}^1\times {\mathrm{5171}}^1$

素因数の和:5601

約数の個数: 32

約数和(自身を含む): 195501600

約数和(自身を除く): 108835640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 419, 838, 1676, 2095, 3352, 4190, 5171, 8380, 10342, 16760, 20684, 25855, 41368, 51710, 103420, 206840, 2166649, 4333298, 8666596, 10833245, 17333192, 21666490, 43332980, 86665960]

約数ペア:

[(1, 86665960), (2, 43332980), (4, 21666490), (5, 17333192), (8, 10833245), (10, 8666596), (20, 4333298), (40, 2166649), (419, 206840), (838, 103420), (1676, 51710), (2095, 41368), (3352, 25855), (4190, 20684), (5171, 16760), (8380, 10342)]