40808420

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{11399}}^1$

素因数の和:11587

約数の個数: 24

約数和(自身を含む): 86184000

約数和(自身を除く): 45375580

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 716, 895, 1790, 3580, 11399, 22798, 45596, 56995, 113990, 227980, 2040421, 4080842, 8161684, 10202105, 20404210, 40808420]

約数ペア:

[(1, 40808420), (2, 20404210), (4, 10202105), (5, 8161684), (10, 4080842), (20, 2040421), (179, 227980), (358, 113990), (716, 56995), (895, 45596), (1790, 22798), (3580, 11399)]