19505320

素因数分解:

$2^3\times 5^1\times {\mathrm{569}}^1\times {\mathrm{857}}^1$

素因数の和:1437

約数の個数: 32

約数和(自身を含む): 44015400

約数和(自身を除く): 24510080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 569, 857, 1138, 1714, 2276, 2845, 3428, 4285, 4552, 5690, 6856, 8570, 11380, 17140, 22760, 34280, 487633, 975266, 1950532, 2438165, 3901064, 4876330, 9752660, 19505320]

約数ペア:

[(1, 19505320), (2, 9752660), (4, 4876330), (5, 3901064), (8, 2438165), (10, 1950532), (20, 975266), (40, 487633), (569, 34280), (857, 22760), (1138, 17140), (1714, 11380), (2276, 8570), (2845, 6856), (3428, 5690), (4285, 4552)]