201128420

素因数分解:

$2^2\times 5^1\times {\mathrm{10056421}}^1$

素因数の和:10056430

約数の個数: 12

約数和(自身を含む): 422369724

約数和(自身を除く): 221241304

約数列:

[1, 2, 4, 5, 10, 20, 10056421, 20112842, 40225684, 50282105, 100564210, 201128420]

約数ペア:

[(1, 201128420), (2, 100564210), (4, 50282105), (5, 40225684), (10, 20112842), (20, 10056421)]