280804220

素因数分解:

$2^2\times 5^1\times {\mathrm{2099}}^1\times {\mathrm{6689}}^1$

素因数の和:8797

約数の個数: 24

約数和(自身を含む): 590058000

約数和(自身を除く): 309253780

約数列:

[1, 2, 4, 5, 10, 20, 2099, 4198, 6689, 8396, 10495, 13378, 20990, 26756, 33445, 41980, 66890, 133780, 14040211, 28080422, 56160844, 70201055, 140402110, 280804220]

約数ペア:

[(1, 280804220), (2, 140402110), (4, 70201055), (5, 56160844), (10, 28080422), (20, 14040211), (2099, 133780), (4198, 66890), (6689, 41980), (8396, 33445), (10495, 26756), (13378, 20990)]