18823240

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2887}}^1$

素因数の和:3061

約数の個数: 32

約数和(自身を含む): 42626880

約数和(自身を除く): 23803640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 2887, 3260, 5774, 6520, 11548, 14435, 23096, 28870, 57740, 115480, 470581, 941162, 1882324, 2352905, 3764648, 4705810, 9411620, 18823240]

約数ペア:

[(1, 18823240), (2, 9411620), (4, 4705810), (5, 3764648), (8, 2352905), (10, 1882324), (20, 941162), (40, 470581), (163, 115480), (326, 57740), (652, 28870), (815, 23096), (1304, 14435), (1630, 11548), (2887, 6520), (3260, 5774)]