20825560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{74377}}^1$

素因数の和:74395

約数の個数: 32

約数和(自身を含む): 53552160

約数和(自身を除く): 32726600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 74377, 148754, 297508, 371885, 520639, 595016, 743770, 1041278, 1487540, 2082556, 2603195, 2975080, 4165112, 5206390, 10412780, 20825560]

約数ペア:

[(1, 20825560), (2, 10412780), (4, 5206390), (5, 4165112), (7, 2975080), (8, 2603195), (10, 2082556), (14, 1487540), (20, 1041278), (28, 743770), (35, 595016), (40, 520639), (56, 371885), (70, 297508), (140, 148754), (280, 74377)]