18045080

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1103}}^1$

素因数の和:1523

約数の個数: 32

約数和(自身を含む): 40737600

約数和(自身を除く): 22692520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1103, 1636, 2045, 2206, 3272, 4090, 4412, 5515, 8180, 8824, 11030, 16360, 22060, 44120, 451127, 902254, 1804508, 2255635, 3609016, 4511270, 9022540, 18045080]

約数ペア:

[(1, 18045080), (2, 9022540), (4, 4511270), (5, 3609016), (8, 2255635), (10, 1804508), (20, 902254), (40, 451127), (409, 44120), (818, 22060), (1103, 16360), (1636, 11030), (2045, 8824), (2206, 8180), (3272, 5515), (4090, 4412)]