20470090

素因数分解:

$2^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{3929}}^1$

素因数の和:4457

約数の個数: 16

約数和(自身を含む): 36926280

約数和(自身を除く): 16456190

約数列:

[1, 2, 5, 10, 521, 1042, 2605, 3929, 5210, 7858, 19645, 39290, 2047009, 4094018, 10235045, 20470090]

約数ペア:

[(1, 20470090), (2, 10235045), (5, 4094018), (10, 2047009), (521, 39290), (1042, 19645), (2605, 7858), (3929, 5210)]