18212440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{26783}}^1$

素因数の和:26811

約数の個数: 32

約数和(自身を含む): 43390080

約数和(自身を除く): 25177640

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 26783, 53566, 107132, 133915, 214264, 267830, 455311, 535660, 910622, 1071320, 1821244, 2276555, 3642488, 4553110, 9106220, 18212440]

約数ペア:

[(1, 18212440), (2, 9106220), (4, 4553110), (5, 3642488), (8, 2276555), (10, 1821244), (17, 1071320), (20, 910622), (34, 535660), (40, 455311), (68, 267830), (85, 214264), (136, 133915), (170, 107132), (340, 53566), (680, 26783)]