4239980

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{2099}}^1$

素因数の和:2209

約数の個数: 24

約数和(自身を含む): 8996400

約数和(自身を除く): 4756420

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 2099, 4198, 8396, 10495, 20990, 41980, 211999, 423998, 847996, 1059995, 2119990, 4239980]

約数ペア:

[(1, 4239980), (2, 2119990), (4, 1059995), (5, 847996), (10, 423998), (20, 211999), (101, 41980), (202, 20990), (404, 10495), (505, 8396), (1010, 4198), (2020, 2099)]