17680460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2687}}^1$

素因数の和:2750

約数の個数: 48

約数和(自身を含む): 43352064

約数和(自身を除く): 25671604

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 2687, 3290, 5374, 6580, 10748, 13435, 18809, 26870, 37618, 53740, 75236, 94045, 126289, 188090, 252578, 376180, 505156, 631445, 884023, 1262890, 1768046, 2525780, 3536092, 4420115, 8840230, 17680460]

約数ペア:

[(1, 17680460), (2, 8840230), (4, 4420115), (5, 3536092), (7, 2525780), (10, 1768046), (14, 1262890), (20, 884023), (28, 631445), (35, 505156), (47, 376180), (70, 252578), (94, 188090), (140, 126289), (188, 94045), (235, 75236), (329, 53740), (470, 37618), (658, 26870), (940, 18809), (1316, 13435), (1645, 10748), (2687, 6580), (3290, 5374)]