80874740

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{40037}}^1$

素因数の和:40147

約数の個数: 24

約数和(自身を含む): 171522792

約数和(自身を除く): 90648052

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 40037, 80074, 160148, 200185, 400370, 800740, 4043737, 8087474, 16174948, 20218685, 40437370, 80874740]

約数ペア:

[(1, 80874740), (2, 40437370), (4, 20218685), (5, 16174948), (10, 8087474), (20, 4043737), (101, 800740), (202, 400370), (404, 200185), (505, 160148), (1010, 80074), (2020, 40037)]