257081968

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{112361}}^1$

素因数の和:112393

約数の個数: 40

約数和(自身を含む): 585181296

約数和(自身を除く): 328099328

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 176, 208, 286, 572, 1144, 2288, 112361, 224722, 449444, 898888, 1235971, 1460693, 1797776, 2471942, 2921386, 4943884, 5842772, 9887768, 11685544, 16067623, 19775536, 23371088, 32135246, 64270492, 128540984, 257081968]

約数ペア:

[(1, 257081968), (2, 128540984), (4, 64270492), (8, 32135246), (11, 23371088), (13, 19775536), (16, 16067623), (22, 11685544), (26, 9887768), (44, 5842772), (52, 4943884), (88, 2921386), (104, 2471942), (143, 1797776), (176, 1460693), (208, 1235971), (286, 898888), (572, 449444), (1144, 224722), (2288, 112361)]