18277360

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{4861}}^1$

素因数の和:4921

約数の個数: 40

約数和(自身を含む): 43407936

約数和(自身を除く): 25130576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 4861, 9722, 19444, 24305, 38888, 48610, 77776, 97220, 194440, 228467, 388880, 456934, 913868, 1142335, 1827736, 2284670, 3655472, 4569340, 9138680, 18277360]

約数ペア:

[(1, 18277360), (2, 9138680), (4, 4569340), (5, 3655472), (8, 2284670), (10, 1827736), (16, 1142335), (20, 913868), (40, 456934), (47, 388880), (80, 228467), (94, 194440), (188, 97220), (235, 77776), (376, 48610), (470, 38888), (752, 24305), (940, 19444), (1880, 9722), (3760, 4861)]