89840720

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{10903}}^1$

素因数の和:11019

約数の個数: 40

約数和(自身を含む): 210926976

約数和(自身を除く): 121086256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 4120, 8240, 10903, 21806, 43612, 54515, 87224, 109030, 174448, 218060, 436120, 872240, 1123009, 2246018, 4492036, 5615045, 8984072, 11230090, 17968144, 22460180, 44920360, 89840720]

約数ペア:

[(1, 89840720), (2, 44920360), (4, 22460180), (5, 17968144), (8, 11230090), (10, 8984072), (16, 5615045), (20, 4492036), (40, 2246018), (80, 1123009), (103, 872240), (206, 436120), (412, 218060), (515, 174448), (824, 109030), (1030, 87224), (1648, 54515), (2060, 43612), (4120, 21806), (8240, 10903)]