9917500

素因数分解:

$2^2\times 5^4\times {\mathrm{3967}}^1$

素因数の和:3991

約数の個数: 30

約数和(自身を含む): 21693056

約数和(自身を除く): 11775556

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 625, 1250, 2500, 3967, 7934, 15868, 19835, 39670, 79340, 99175, 198350, 396700, 495875, 991750, 1983500, 2479375, 4958750, 9917500]

約数ペア:

[(1, 9917500), (2, 4958750), (4, 2479375), (5, 1983500), (10, 991750), (20, 495875), (25, 396700), (50, 198350), (100, 99175), (125, 79340), (250, 39670), (500, 19835), (625, 15868), (1250, 7934), (2500, 3967)]