18450320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{701}}^1$

素因数の和:768

約数の個数: 80

約数和(自身を含む): 50139648

約数和(自身を除く): 31689328

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 47, 56, 70, 80, 94, 112, 140, 188, 235, 280, 329, 376, 470, 560, 658, 701, 752, 940, 1316, 1402, 1645, 1880, 2632, 2804, 3290, 3505, 3760, 4907, 5264, 5608, 6580, 7010, 9814, 11216, 13160, 14020, 19628, 24535, 26320, 28040, 32947, 39256, 49070, 56080, 65894, 78512, 98140, 131788, 164735, 196280, 230629, 263576, 329470, 392560, 461258, 527152, 658940, 922516, 1153145, 1317880, 1845032, 2306290, 2635760, 3690064, 4612580, 9225160, 18450320]

約数ペア:

[(1, 18450320), (2, 9225160), (4, 4612580), (5, 3690064), (7, 2635760), (8, 2306290), (10, 1845032), (14, 1317880), (16, 1153145), (20, 922516), (28, 658940), (35, 527152), (40, 461258), (47, 392560), (56, 329470), (70, 263576), (80, 230629), (94, 196280), (112, 164735), (140, 131788), (188, 98140), (235, 78512), (280, 65894), (329, 56080), (376, 49070), (470, 39256), (560, 32947), (658, 28040), (701, 26320), (752, 24535), (940, 19628), (1316, 14020), (1402, 13160), (1645, 11216), (1880, 9814), (2632, 7010), (2804, 6580), (3290, 5608), (3505, 5264), (3760, 4907)]