51820145

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{163}}^1$

素因数の和:321

約数の個数: 32

約数和(自身を含む): 69320832

約数和(自身を除く): 17500687

約数列:

[1, 5, 13, 65, 67, 73, 163, 335, 365, 815, 871, 949, 2119, 4355, 4745, 4891, 10595, 10921, 11899, 24455, 54605, 59495, 63583, 141973, 154687, 317915, 709865, 773435, 797233, 3986165, 10364029, 51820145]

約数ペア:

[(1, 51820145), (5, 10364029), (13, 3986165), (65, 797233), (67, 773435), (73, 709865), (163, 317915), (335, 154687), (365, 141973), (815, 63583), (871, 59495), (949, 54605), (2119, 24455), (4355, 11899), (4745, 10921), (4891, 10595)]