19874960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{35491}}^1$

素因数の和:35511

約数の個数: 40

約数和(自身を含む): 52812096

約数和(自身を除く): 32937136

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 35491, 70982, 141964, 177455, 248437, 283928, 354910, 496874, 567856, 709820, 993748, 1242185, 1419640, 1987496, 2484370, 2839280, 3974992, 4968740, 9937480, 19874960]

約数ペア:

[(1, 19874960), (2, 9937480), (4, 4968740), (5, 3974992), (7, 2839280), (8, 2484370), (10, 1987496), (14, 1419640), (16, 1242185), (20, 993748), (28, 709820), (35, 567856), (40, 496874), (56, 354910), (70, 283928), (80, 248437), (112, 177455), (140, 141964), (280, 70982), (560, 35491)]