81359210

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{280549}}^1$

素因数の和:280585

約数の個数: 16

約数和(自身を含む): 151497000

約数和(自身を除く): 70137790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 280549, 561098, 1402745, 2805490, 8135921, 16271842, 40679605, 81359210]

約数ペア:

[(1, 81359210), (2, 40679605), (5, 16271842), (10, 8135921), (29, 2805490), (58, 1402745), (145, 561098), (290, 280549)]