258781688

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{13187}}^1$

素因数の和:13427

約数の個数: 32

約数和(自身を含む): 531740160

約数和(自身を除く): 272958472

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 223, 446, 892, 1784, 2453, 4906, 9812, 13187, 19624, 26374, 52748, 105496, 145057, 290114, 580228, 1160456, 2940701, 5881402, 11762804, 23525608, 32347711, 64695422, 129390844, 258781688]

約数ペア:

[(1, 258781688), (2, 129390844), (4, 64695422), (8, 32347711), (11, 23525608), (22, 11762804), (44, 5881402), (88, 2940701), (223, 1160456), (446, 580228), (892, 290114), (1784, 145057), (2453, 105496), (4906, 52748), (9812, 26374), (13187, 19624)]