13128020

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{4027}}^1$

素因数の和:4199

約数の個数: 24

約数和(自身を含む): 27744864

約数和(自身を除く): 14616844

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 4027, 8054, 16108, 20135, 40270, 80540, 656401, 1312802, 2625604, 3282005, 6564010, 13128020]

約数ペア:

[(1, 13128020), (2, 6564010), (4, 3282005), (5, 2625604), (10, 1312802), (20, 656401), (163, 80540), (326, 40270), (652, 20135), (815, 16108), (1630, 8054), (3260, 4027)]