18340360

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10663}}^1$

素因数の和:10717

約数の個数: 32

約数和(自身を含む): 42229440

約数和(自身を除く): 23889080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 10663, 21326, 42652, 53315, 85304, 106630, 213260, 426520, 458509, 917018, 1834036, 2292545, 3668072, 4585090, 9170180, 18340360]

約数ペア:

[(1, 18340360), (2, 9170180), (4, 4585090), (5, 3668072), (8, 2292545), (10, 1834036), (20, 917018), (40, 458509), (43, 426520), (86, 213260), (172, 106630), (215, 85304), (344, 53315), (430, 42652), (860, 21326), (1720, 10663)]