257128860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{4285481}}^1$

素因数の和:4285493

約数の個数: 24

約数和(自身を含む): 719960976

約数和(自身を除く): 462832116

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 4285481, 8570962, 12856443, 17141924, 21427405, 25712886, 42854810, 51425772, 64282215, 85709620, 128564430, 257128860]

約数ペア:

[(1, 257128860), (2, 128564430), (3, 85709620), (4, 64282215), (5, 51425772), (6, 42854810), (10, 25712886), (12, 21427405), (15, 17141924), (20, 12856443), (30, 8570962), (60, 4285481)]