20565218140

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{4096657}}^1$

素因数の和:4096917

約数の個数: 24

約数和(自身を含む): 43359028272

約数和(自身を除く): 22793810132

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 5020, 4096657, 8193314, 16386628, 20483285, 40966570, 81933140, 1028260907, 2056521814, 4113043628, 5141304535, 10282609070, 20565218140]

約数ペア:

[(1, 20565218140), (2, 10282609070), (4, 5141304535), (5, 4113043628), (10, 2056521814), (20, 1028260907), (251, 81933140), (502, 40966570), (1004, 20483285), (1255, 16386628), (2510, 8193314), (5020, 4096657)]