68141140

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{21701}}^1$

素因数の和:21867

約数の個数: 24

約数和(自身を含む): 144014472

約数和(自身を除く): 75873332

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 21701, 43402, 86804, 108505, 217010, 434020, 3407057, 6814114, 13628228, 17035285, 34070570, 68141140]

約数ペア:

[(1, 68141140), (2, 34070570), (4, 17035285), (5, 13628228), (10, 6814114), (20, 3407057), (157, 434020), (314, 217010), (628, 108505), (785, 86804), (1570, 43402), (3140, 21701)]