18559120

素因数分解:

$2^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{2053}}^1$

素因数の和:2179

約数の個数: 40

約数和(自身を含む): 43553016

約数和(自身を除く): 24993896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 113, 226, 452, 565, 904, 1130, 1808, 2053, 2260, 4106, 4520, 8212, 9040, 10265, 16424, 20530, 32848, 41060, 82120, 164240, 231989, 463978, 927956, 1159945, 1855912, 2319890, 3711824, 4639780, 9279560, 18559120]

約数ペア:

[(1, 18559120), (2, 9279560), (4, 4639780), (5, 3711824), (8, 2319890), (10, 1855912), (16, 1159945), (20, 927956), (40, 463978), (80, 231989), (113, 164240), (226, 82120), (452, 41060), (565, 32848), (904, 20530), (1130, 16424), (1808, 10265), (2053, 9040), (2260, 8212), (4106, 4520)]