25971884080

素因数分解:

$2^4\times 5^1\times {\mathrm{324648551}}^1$

素因数の和:324648564

約数の個数: 20

約数和(自身を含む): 60384630672

約数和(自身を除く): 34412746592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 324648551, 649297102, 1298594204, 1623242755, 2597188408, 3246485510, 5194376816, 6492971020, 12985942040, 25971884080]

約数ペア:

[(1, 25971884080), (2, 12985942040), (4, 6492971020), (5, 5194376816), (8, 3246485510), (10, 2597188408), (16, 1623242755), (20, 1298594204), (40, 649297102), (80, 324648551)]