85501640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{305363}}^1$

素因数の和:305381

約数の個数: 32

約数和(自身を含む): 219862080

約数和(自身を除く): 134360440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 305363, 610726, 1221452, 1526815, 2137541, 2442904, 3053630, 4275082, 6107260, 8550164, 10687705, 12214520, 17100328, 21375410, 42750820, 85501640]

約数ペア:

[(1, 85501640), (2, 42750820), (4, 21375410), (5, 17100328), (7, 12214520), (8, 10687705), (10, 8550164), (14, 6107260), (20, 4275082), (28, 3053630), (35, 2442904), (40, 2137541), (56, 1526815), (70, 1221452), (140, 610726), (280, 305363)]