18432880

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{2237}}^1$

素因数の和:2353

約数の個数: 40

約数和(自身を含む): 43291872

約数和(自身を除く): 24858992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 2237, 4120, 4474, 8240, 8948, 11185, 17896, 22370, 35792, 44740, 89480, 178960, 230411, 460822, 921644, 1152055, 1843288, 2304110, 3686576, 4608220, 9216440, 18432880]

約数ペア:

[(1, 18432880), (2, 9216440), (4, 4608220), (5, 3686576), (8, 2304110), (10, 1843288), (16, 1152055), (20, 921644), (40, 460822), (80, 230411), (103, 178960), (206, 89480), (412, 44740), (515, 35792), (824, 22370), (1030, 17896), (1648, 11185), (2060, 8948), (2237, 8240), (4120, 4474)]