1331761580

素因数分解:

$2^2\times 5^1\times {\mathrm{2531}}^1\times {\mathrm{26309}}^1$

素因数の和:28849

約数の個数: 24

約数和(自身を含む): 2797910640

約数和(自身を除く): 1466149060

約数列:

[1, 2, 4, 5, 10, 20, 2531, 5062, 10124, 12655, 25310, 26309, 50620, 52618, 105236, 131545, 263090, 526180, 66588079, 133176158, 266352316, 332940395, 665880790, 1331761580]

約数ペア:

[(1, 1331761580), (2, 665880790), (4, 332940395), (5, 266352316), (10, 133176158), (20, 66588079), (2531, 526180), (5062, 263090), (10124, 131545), (12655, 105236), (25310, 52618), (26309, 50620)]