18849080

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6637}}^1$

素因数の和:6719

約数の個数: 32

約数和(自身を含む): 43014240

約数和(自身を除く): 24165160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 6637, 13274, 26548, 33185, 53096, 66370, 132740, 265480, 471227, 942454, 1884908, 2356135, 3769816, 4712270, 9424540, 18849080]

約数ペア:

[(1, 18849080), (2, 9424540), (4, 4712270), (5, 3769816), (8, 2356135), (10, 1884908), (20, 942454), (40, 471227), (71, 265480), (142, 132740), (284, 66370), (355, 53096), (568, 33185), (710, 26548), (1420, 13274), (2840, 6637)]