18001870

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{41}}^1\times {\mathrm{83}}^1$

素因数の和:177

約数の個数: 48

約数和(自身を含む): 35117712

約数和(自身を除く): 17115842

約数列:

[1, 2, 5, 10, 23, 41, 46, 82, 83, 115, 166, 205, 230, 410, 415, 529, 830, 943, 1058, 1886, 1909, 2645, 3403, 3818, 4715, 5290, 6806, 9430, 9545, 17015, 19090, 21689, 34030, 43378, 43907, 78269, 87814, 108445, 156538, 216890, 219535, 391345, 439070, 782690, 1800187, 3600374, 9000935, 18001870]

約数ペア:

[(1, 18001870), (2, 9000935), (5, 3600374), (10, 1800187), (23, 782690), (41, 439070), (46, 391345), (82, 219535), (83, 216890), (115, 156538), (166, 108445), (205, 87814), (230, 78269), (410, 43907), (415, 43378), (529, 34030), (830, 21689), (943, 19090), (1058, 17015), (1886, 9545), (1909, 9430), (2645, 6806), (3403, 5290), (3818, 4715)]