18497240

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2837}}^1$

素因数の和:3011

約数の個数: 32

約数和(自身を含む): 41888880

約数和(自身を除く): 23391640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 2837, 3260, 5674, 6520, 11348, 14185, 22696, 28370, 56740, 113480, 462431, 924862, 1849724, 2312155, 3699448, 4624310, 9248620, 18497240]

約数ペア:

[(1, 18497240), (2, 9248620), (4, 4624310), (5, 3699448), (8, 2312155), (10, 1849724), (20, 924862), (40, 462431), (163, 113480), (326, 56740), (652, 28370), (815, 22696), (1304, 14185), (1630, 11348), (2837, 6520), (3260, 5674)]