30728420

素因数分解:

$2^2\times 5^1\times {\mathrm{499}}^1\times {\mathrm{3079}}^1$

素因数の和:3587

約数の個数: 24

約数和(自身を含む): 64680000

約数和(自身を除く): 33951580

約数列:

[1, 2, 4, 5, 10, 20, 499, 998, 1996, 2495, 3079, 4990, 6158, 9980, 12316, 15395, 30790, 61580, 1536421, 3072842, 6145684, 7682105, 15364210, 30728420]

約数ペア:

[(1, 30728420), (2, 15364210), (4, 7682105), (5, 6145684), (10, 3072842), (20, 1536421), (499, 61580), (998, 30790), (1996, 15395), (2495, 12316), (3079, 9980), (4990, 6158)]