64870180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{170711}}^1$

素因数の和:170739

約数の個数: 24

約数和(自身を含む): 143398080

約数和(自身を除く): 78527900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 170711, 341422, 682844, 853555, 1707110, 3243509, 3414220, 6487018, 12974036, 16217545, 32435090, 64870180]

約数ペア:

[(1, 64870180), (2, 32435090), (4, 16217545), (5, 12974036), (10, 6487018), (19, 3414220), (20, 3243509), (38, 1707110), (76, 853555), (95, 682844), (190, 341422), (380, 170711)]