81586990

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^2\times {\mathrm{1531}}^1$

素因数の和:1684

約数の個数: 24

約数和(自身を含む): 148993128

約数和(自身を除く): 67406138

約数列:

[1, 2, 5, 10, 73, 146, 365, 730, 1531, 3062, 5329, 7655, 10658, 15310, 26645, 53290, 111763, 223526, 558815, 1117630, 8158699, 16317398, 40793495, 81586990]

約数ペア:

[(1, 81586990), (2, 40793495), (5, 16317398), (10, 8158699), (73, 1117630), (146, 558815), (365, 223526), (730, 111763), (1531, 53290), (3062, 26645), (5329, 15310), (7655, 10658)]