4089782020

素因数分解:

$2^2\times 5^1\times {\mathrm{204489101}}^1$

素因数の和:204489110

約数の個数: 12

約数和(自身を含む): 8588542284

約数和(自身を除く): 4498760264

約数列:

[1, 2, 4, 5, 10, 20, 204489101, 408978202, 817956404, 1022445505, 2044891010, 4089782020]

約数ペア:

[(1, 4089782020), (2, 2044891010), (4, 1022445505), (5, 817956404), (10, 408978202), (20, 204489101)]