9990340

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{6323}}^1$

素因数の和:6411

約数の個数: 24

約数和(自身を含む): 21248640

約数和(自身を除く): 11258300

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 6323, 12646, 25292, 31615, 63230, 126460, 499517, 999034, 1998068, 2497585, 4995170, 9990340]

約数ペア:

[(1, 9990340), (2, 4995170), (4, 2497585), (5, 1998068), (10, 999034), (20, 499517), (79, 126460), (158, 63230), (316, 31615), (395, 25292), (790, 12646), (1580, 6323)]