40708420

素因数分解:

$2^2\times 5^1\times {\mathrm{499}}^1\times {\mathrm{4079}}^1$

素因数の和:4587

約数の個数: 24

約数和(自身を含む): 85680000

約数和(自身を除く): 44971580

約数列:

[1, 2, 4, 5, 10, 20, 499, 998, 1996, 2495, 4079, 4990, 8158, 9980, 16316, 20395, 40790, 81580, 2035421, 4070842, 8141684, 10177105, 20354210, 40708420]

約数ペア:

[(1, 40708420), (2, 20354210), (4, 10177105), (5, 8141684), (10, 4070842), (20, 2035421), (499, 81580), (998, 40790), (1996, 20395), (2495, 16316), (4079, 9980), (4990, 8158)]