2019165040

素因数分解:

$2^4\times 5^1\times {\mathrm{25239563}}^1$

素因数の和:25239576

約数の個数: 20

約数和(自身を含む): 4694558904

約数和(自身を除く): 2675393864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25239563, 50479126, 100958252, 126197815, 201916504, 252395630, 403833008, 504791260, 1009582520, 2019165040]

約数ペア:

[(1, 2019165040), (2, 1009582520), (4, 504791260), (5, 403833008), (8, 252395630), (10, 201916504), (16, 126197815), (20, 100958252), (40, 50479126), (80, 25239563)]