18800090

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{26479}}^1$

素因数の和:26557

約数の個数: 16

約数和(自身を含む): 34318080

約数和(自身を除く): 15517990

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 26479, 52958, 132395, 264790, 1880009, 3760018, 9400045, 18800090]

約数ペア:

[(1, 18800090), (2, 9400045), (5, 3760018), (10, 1880009), (71, 264790), (142, 132395), (355, 52958), (710, 26479)]