2019977380

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{246941}}^1$

素因数の和:247359

約数の個数: 24

約数和(自身を含む): 4252341240

約数和(自身を除く): 2232363860

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 8180, 246941, 493882, 987764, 1234705, 2469410, 4938820, 100998869, 201997738, 403995476, 504994345, 1009988690, 2019977380]

約数ペア:

[(1, 2019977380), (2, 1009988690), (4, 504994345), (5, 403995476), (10, 201997738), (20, 100998869), (409, 4938820), (818, 2469410), (1636, 1234705), (2045, 987764), (4090, 493882), (8180, 246941)]