20560005

素因数分解:

$3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2803}}^1$

素因数の和:2977

約数の個数: 24

約数和(自身を含む): 35868768

約数和(自身を除く): 15308763

約数列:

[1, 3, 5, 9, 15, 45, 163, 489, 815, 1467, 2445, 2803, 7335, 8409, 14015, 25227, 42045, 126135, 456889, 1370667, 2284445, 4112001, 6853335, 20560005]

約数ペア:

[(1, 20560005), (3, 6853335), (5, 4112001), (9, 2284445), (15, 1370667), (45, 456889), (163, 126135), (489, 42045), (815, 25227), (1467, 14015), (2445, 8409), (2803, 7335)]