68819540

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{26267}}^1$

素因数の和:26407

約数の個数: 24

約数和(自身を含む): 145629792

約数和(自身を除く): 76810252

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 26267, 52534, 105068, 131335, 262670, 525340, 3440977, 6881954, 13763908, 17204885, 34409770, 68819540]

約数ペア:

[(1, 68819540), (2, 34409770), (4, 17204885), (5, 13763908), (10, 6881954), (20, 3440977), (131, 525340), (262, 262670), (524, 131335), (655, 105068), (1310, 52534), (2620, 26267)]