20201230

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{41227}}^1$

素因数の和:41248

約数の個数: 24

約数和(自身を含む): 42299928

約数和(自身を除く): 22098698

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 41227, 82454, 206135, 288589, 412270, 577178, 1442945, 2020123, 2885890, 4040246, 10100615, 20201230]

約数ペア:

[(1, 20201230), (2, 10100615), (5, 4040246), (7, 2885890), (10, 2020123), (14, 1442945), (35, 577178), (49, 412270), (70, 288589), (98, 206135), (245, 82454), (490, 41227)]