25645420

素因数分解:

$2^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{2633}}^1$

素因数の和:3129

約数の個数: 24

約数和(自身を含む): 53986464

約数和(自身を除く): 28341044

約数列:

[1, 2, 4, 5, 10, 20, 487, 974, 1948, 2435, 2633, 4870, 5266, 9740, 10532, 13165, 26330, 52660, 1282271, 2564542, 5129084, 6411355, 12822710, 25645420]

約数ペア:

[(1, 25645420), (2, 12822710), (4, 6411355), (5, 5129084), (10, 2564542), (20, 1282271), (487, 52660), (974, 26330), (1948, 13165), (2435, 10532), (2633, 9740), (4870, 5266)]