89890160

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{10909}}^1$

素因数の和:11025

約数の個数: 40

約数和(自身を含む): 211043040

約数和(自身を除く): 121152880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 4120, 8240, 10909, 21818, 43636, 54545, 87272, 109090, 174544, 218180, 436360, 872720, 1123627, 2247254, 4494508, 5618135, 8989016, 11236270, 17978032, 22472540, 44945080, 89890160]

約数ペア:

[(1, 89890160), (2, 44945080), (4, 22472540), (5, 17978032), (8, 11236270), (10, 8989016), (16, 5618135), (20, 4494508), (40, 2247254), (80, 1123627), (103, 872720), (206, 436360), (412, 218180), (515, 174544), (824, 109090), (1030, 87272), (1648, 54545), (2060, 43636), (4120, 21818), (8240, 10909)]