200820280

素因数分解:

$2^3\times 5^1\times {\mathrm{5020507}}^1$

素因数の和:5020518

約数の個数: 16

約数和(自身を含む): 451845720

約数和(自身を除く): 251025440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5020507, 10041014, 20082028, 25102535, 40164056, 50205070, 100410140, 200820280]

約数ペア:

[(1, 200820280), (2, 100410140), (4, 50205070), (5, 40164056), (8, 25102535), (10, 20082028), (20, 10041014), (40, 5020507)]