20442220

素因数分解:

$2^2\times 5^1\times {\mathrm{751}}^1\times {\mathrm{1361}}^1$

素因数の和:2121

約数の個数: 24

約数和(自身を含む): 43017408

約数和(自身を除く): 22575188

約数列:

[1, 2, 4, 5, 10, 20, 751, 1361, 1502, 2722, 3004, 3755, 5444, 6805, 7510, 13610, 15020, 27220, 1022111, 2044222, 4088444, 5110555, 10221110, 20442220]

約数ペア:

[(1, 20442220), (2, 10221110), (4, 5110555), (5, 4088444), (10, 2044222), (20, 1022111), (751, 27220), (1361, 15020), (1502, 13610), (2722, 7510), (3004, 6805), (3755, 5444)]