20266605

素因数分解:

$3^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{307}}^1$

素因数の和:487

約数の個数: 40

約数和(自身を含む): 36671712

約数和(自身を除く): 16405107

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 163, 307, 405, 489, 815, 921, 1467, 1535, 2445, 2763, 4401, 4605, 7335, 8289, 13203, 13815, 22005, 24867, 41445, 50041, 66015, 124335, 150123, 250205, 450369, 750615, 1351107, 2251845, 4053321, 6755535, 20266605]

約数ペア:

[(1, 20266605), (3, 6755535), (5, 4053321), (9, 2251845), (15, 1351107), (27, 750615), (45, 450369), (81, 250205), (135, 150123), (163, 124335), (307, 66015), (405, 50041), (489, 41445), (815, 24867), (921, 22005), (1467, 13815), (1535, 13203), (2445, 8289), (2763, 7335), (4401, 4605)]