256075480

素因数分解:

$2^3\times 5^1\times {\mathrm{6401887}}^1$

素因数の和:6401898

約数の個数: 16

約数和(自身を含む): 576169920

約数和(自身を除く): 320094440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 6401887, 12803774, 25607548, 32009435, 51215096, 64018870, 128037740, 256075480]

約数ペア:

[(1, 256075480), (2, 128037740), (4, 64018870), (5, 51215096), (8, 32009435), (10, 25607548), (20, 12803774), (40, 6401887)]