1280640912

素因数分解:

$2^4\times 3^1\times {\mathrm{26680019}}^1$

素因数の和:26680030

約数の個数: 20

約数和(自身を含む): 3308322480

約数和(自身を除く): 2027681568

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 26680019, 53360038, 80040057, 106720076, 160080114, 213440152, 320160228, 426880304, 640320456, 1280640912]

約数ペア:

[(1, 1280640912), (2, 640320456), (3, 426880304), (4, 320160228), (6, 213440152), (8, 160080114), (12, 106720076), (16, 80040057), (24, 53360038), (48, 26680019)]