20015020

素因数分解:

$2^2\times 5^1\times {\mathrm{673}}^1\times {\mathrm{1487}}^1$

素因数の和:2169

約数の個数: 24

約数和(自身を含む): 42122304

約数和(自身を除く): 22107284

約数列:

[1, 2, 4, 5, 10, 20, 673, 1346, 1487, 2692, 2974, 3365, 5948, 6730, 7435, 13460, 14870, 29740, 1000751, 2001502, 4003004, 5003755, 10007510, 20015020]

約数ペア:

[(1, 20015020), (2, 10007510), (4, 5003755), (5, 4003004), (10, 2001502), (20, 1000751), (673, 29740), (1346, 14870), (1487, 13460), (2692, 7435), (2974, 6730), (3365, 5948)]