20100280

素因数分解:

$2^3\times 5^1\times {\mathrm{502507}}^1$

素因数の和:502518

約数の個数: 16

約数和(自身を含む): 45225720

約数和(自身を除く): 25125440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 502507, 1005014, 2010028, 2512535, 4020056, 5025070, 10050140, 20100280]

約数ペア:

[(1, 20100280), (2, 10050140), (4, 5025070), (5, 4020056), (8, 2512535), (10, 2010028), (20, 1005014), (40, 502507)]