1279264840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{4568803}}^1$

素因数の和:4568821

約数の個数: 32

約数和(自身を含む): 3289538880

約数和(自身を除く): 2010274040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 4568803, 9137606, 18275212, 22844015, 31981621, 36550424, 45688030, 63963242, 91376060, 127926484, 159908105, 182752120, 255852968, 319816210, 639632420, 1279264840]

約数ペア:

[(1, 1279264840), (2, 639632420), (4, 319816210), (5, 255852968), (7, 182752120), (8, 159908105), (10, 127926484), (14, 91376060), (20, 63963242), (28, 45688030), (35, 36550424), (40, 31981621), (56, 22844015), (70, 18275212), (140, 9137606), (280, 4568803)]