87866140

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{49363}}^1$

素因数の和:49461

約数の個数: 24

約数和(自身を含む): 186595920

約数和(自身を除く): 98729780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 49363, 98726, 197452, 246815, 493630, 987260, 4393307, 8786614, 17573228, 21966535, 43933070, 87866140]

約数ペア:

[(1, 87866140), (2, 43933070), (4, 21966535), (5, 17573228), (10, 8786614), (20, 4393307), (89, 987260), (178, 493630), (356, 246815), (445, 197452), (890, 98726), (1780, 49363)]