18304760

素因数分解:

$2^3\times 5^1\times {\mathrm{443}}^1\times {\mathrm{1033}}^1$

素因数の和:1487

約数の個数: 32

約数和(自身を含む): 41318640

約数和(自身を除く): 23013880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 443, 886, 1033, 1772, 2066, 2215, 3544, 4132, 4430, 5165, 8264, 8860, 10330, 17720, 20660, 41320, 457619, 915238, 1830476, 2288095, 3660952, 4576190, 9152380, 18304760]

約数ペア:

[(1, 18304760), (2, 9152380), (4, 4576190), (5, 3660952), (8, 2288095), (10, 1830476), (20, 915238), (40, 457619), (443, 41320), (886, 20660), (1033, 17720), (1772, 10330), (2066, 8860), (2215, 8264), (3544, 5165), (4132, 4430)]