2019918020

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{230059}}^1$

素因数の和:230507

約数の個数: 24

約数和(自身を含む): 4251508800

約数和(自身を除く): 2231590780

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2195, 4390, 8780, 230059, 460118, 920236, 1150295, 2300590, 4601180, 100995901, 201991802, 403983604, 504979505, 1009959010, 2019918020]

約数ペア:

[(1, 2019918020), (2, 1009959010), (4, 504979505), (5, 403983604), (10, 201991802), (20, 100995901), (439, 4601180), (878, 2300590), (1756, 1150295), (2195, 920236), (4390, 460118), (8780, 230059)]