89715580

素因数分解:

$2^2\times 5^1\times {\mathrm{631}}^1\times {\mathrm{7109}}^1$

素因数の和:7749

約数の個数: 24

約数和(自身を含む): 188727840

約数和(自身を除く): 99012260

約数列:

[1, 2, 4, 5, 10, 20, 631, 1262, 2524, 3155, 6310, 7109, 12620, 14218, 28436, 35545, 71090, 142180, 4485779, 8971558, 17943116, 22428895, 44857790, 89715580]

約数ペア:

[(1, 89715580), (2, 44857790), (4, 22428895), (5, 17943116), (10, 8971558), (20, 4485779), (631, 142180), (1262, 71090), (2524, 35545), (3155, 28436), (6310, 14218), (7109, 12620)]