28268140

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{17029}}^1$

素因数の和:17121

約数の個数: 24

約数和(自身を含む): 60081840

約数和(自身を除く): 31813700

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 17029, 34058, 68116, 85145, 170290, 340580, 1413407, 2826814, 5653628, 7067035, 14134070, 28268140]

約数ペア:

[(1, 28268140), (2, 14134070), (4, 7067035), (5, 5653628), (10, 2826814), (20, 1413407), (83, 340580), (166, 170290), (332, 85145), (415, 68116), (830, 34058), (1660, 17029)]