257137012

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{313}}^1\times {\mathrm{18671}}^1$

素因数の和:18999

約数の個数: 24

約数和(自身を含む): 492492672

約数和(自身を除く): 235355660

約数列:

[1, 2, 4, 11, 22, 44, 313, 626, 1252, 3443, 6886, 13772, 18671, 37342, 74684, 205381, 410762, 821524, 5844023, 11688046, 23376092, 64284253, 128568506, 257137012]

約数ペア:

[(1, 257137012), (2, 128568506), (4, 64284253), (11, 23376092), (22, 11688046), (44, 5844023), (313, 821524), (626, 410762), (1252, 205381), (3443, 74684), (6886, 37342), (13772, 18671)]