18557080

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10789}}^1$

素因数の和:10843

約数の個数: 32

約数和(自身を含む): 42728400

約数和(自身を除く): 24171320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 10789, 21578, 43156, 53945, 86312, 107890, 215780, 431560, 463927, 927854, 1855708, 2319635, 3711416, 4639270, 9278540, 18557080]

約数ペア:

[(1, 18557080), (2, 9278540), (4, 4639270), (5, 3711416), (8, 2319635), (10, 1855708), (20, 927854), (40, 463927), (43, 431560), (86, 215780), (172, 107890), (215, 86312), (344, 53945), (430, 43156), (860, 21578), (1720, 10789)]