12777740

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{4877}}^1$

素因数の和:5017

約数の個数: 24

約数和(自身を含む): 27043632

約数和(自身を除く): 14265892

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 4877, 9754, 19508, 24385, 48770, 97540, 638887, 1277774, 2555548, 3194435, 6388870, 12777740]

約数ペア:

[(1, 12777740), (2, 6388870), (4, 3194435), (5, 2555548), (10, 1277774), (20, 638887), (131, 97540), (262, 48770), (524, 24385), (655, 19508), (1310, 9754), (2620, 4877)]