18449440

素因数分解:

$2^5\times 5^1\times {\mathrm{115309}}^1$

素因数の和:115324

約数の個数: 24

約数和(自身を含む): 43587180

約数和(自身を除く): 25137740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 115309, 230618, 461236, 576545, 922472, 1153090, 1844944, 2306180, 3689888, 4612360, 9224720, 18449440]

約数ペア:

[(1, 18449440), (2, 9224720), (4, 4612360), (5, 3689888), (8, 2306180), (10, 1844944), (16, 1153090), (20, 922472), (32, 576545), (40, 461236), (80, 230618), (160, 115309)]