20395588

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^2$

素因数の和:224

約数の個数: 36

約数和(自身を含む): 38937360

約数和(自身を除く): 18541772

約数列:

[1, 2, 4, 19, 38, 43, 76, 79, 86, 158, 172, 316, 817, 1501, 1634, 3002, 3268, 3397, 6004, 6241, 6794, 12482, 13588, 24964, 64543, 118579, 129086, 237158, 258172, 268363, 474316, 536726, 1073452, 5098897, 10197794, 20395588]

約数ペア:

[(1, 20395588), (2, 10197794), (4, 5098897), (19, 1073452), (38, 536726), (43, 474316), (76, 268363), (79, 258172), (86, 237158), (158, 129086), (172, 118579), (316, 64543), (817, 24964), (1501, 13588), (1634, 12482), (3002, 6794), (3268, 6241), (3397, 6004)]