18262520

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2801}}^1$

素因数の和:2975

約数の個数: 32

約数和(自身を含む): 41357520

約数和(自身を除く): 23095000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 2801, 3260, 5602, 6520, 11204, 14005, 22408, 28010, 56020, 112040, 456563, 913126, 1826252, 2282815, 3652504, 4565630, 9131260, 18262520]

約数ペア:

[(1, 18262520), (2, 9131260), (4, 4565630), (5, 3652504), (8, 2282815), (10, 1826252), (20, 913126), (40, 456563), (163, 112040), (326, 56020), (652, 28010), (815, 22408), (1304, 14005), (1630, 11204), (2801, 6520), (3260, 5602)]