408045460

素因数分解:

$2^2\times 5^1\times {\mathrm{1109}}^1\times {\mathrm{18397}}^1$

素因数の和:19515

約数の個数: 24

約数和(自身を含む): 857714760

約数和(自身を除く): 449669300

約数列:

[1, 2, 4, 5, 10, 20, 1109, 2218, 4436, 5545, 11090, 18397, 22180, 36794, 73588, 91985, 183970, 367940, 20402273, 40804546, 81609092, 102011365, 204022730, 408045460]

約数ペア:

[(1, 408045460), (2, 204022730), (4, 102011365), (5, 81609092), (10, 40804546), (20, 20402273), (1109, 367940), (2218, 183970), (4436, 91985), (5545, 73588), (11090, 36794), (18397, 22180)]