19687740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{328129}}^1$

素因数の和:328141

約数の個数: 24

約数和(自身を含む): 55125840

約数和(自身を除く): 35438100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 328129, 656258, 984387, 1312516, 1640645, 1968774, 3281290, 3937548, 4921935, 6562580, 9843870, 19687740]

約数ペア:

[(1, 19687740), (2, 9843870), (3, 6562580), (4, 4921935), (5, 3937548), (6, 3281290), (10, 1968774), (12, 1640645), (15, 1312516), (20, 984387), (30, 656258), (60, 328129)]