18181520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{32467}}^1$

素因数の和:32487

約数の個数: 40

約数和(自身を含む): 48312384

約数和(自身を除く): 30130864

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 32467, 64934, 129868, 162335, 227269, 259736, 324670, 454538, 519472, 649340, 909076, 1136345, 1298680, 1818152, 2272690, 2597360, 3636304, 4545380, 9090760, 18181520]

約数ペア:

[(1, 18181520), (2, 9090760), (4, 4545380), (5, 3636304), (7, 2597360), (8, 2272690), (10, 1818152), (14, 1298680), (16, 1136345), (20, 909076), (28, 649340), (35, 519472), (40, 454538), (56, 324670), (70, 259736), (80, 227269), (112, 162335), (140, 129868), (280, 64934), (560, 32467)]