898490090

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1265479}}^1$

素因数の和:1265557

約数の個数: 16

約数和(自身を含む): 1640062080

約数和(自身を除く): 741571990

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 1265479, 2530958, 6327395, 12654790, 89849009, 179698018, 449245045, 898490090]

約数ペア:

[(1, 898490090), (2, 449245045), (5, 179698018), (10, 89849009), (71, 12654790), (142, 6327395), (355, 2530958), (710, 1265479)]