19927700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{15329}}^1$

素因数の和:15356

約数の個数: 36

約数和(自身を含む): 46572540

約数和(自身を除く): 26644840

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 15329, 30658, 61316, 76645, 153290, 199277, 306580, 383225, 398554, 766450, 797108, 996385, 1532900, 1992770, 3985540, 4981925, 9963850, 19927700]

約数ペア:

[(1, 19927700), (2, 9963850), (4, 4981925), (5, 3985540), (10, 1992770), (13, 1532900), (20, 996385), (25, 797108), (26, 766450), (50, 398554), (52, 383225), (65, 306580), (100, 199277), (130, 153290), (260, 76645), (325, 61316), (650, 30658), (1300, 15329)]