28111688

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{113}}^1\times {\mathrm{257}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 58676940

約数和(自身を除く): 30565252

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 113, 121, 226, 242, 257, 452, 484, 514, 904, 968, 1028, 1243, 2056, 2486, 2827, 4972, 5654, 9944, 11308, 13673, 22616, 27346, 29041, 31097, 54692, 58082, 62194, 109384, 116164, 124388, 232328, 248776, 319451, 638902, 1277804, 2555608, 3513961, 7027922, 14055844, 28111688]

約数ペア:

[(1, 28111688), (2, 14055844), (4, 7027922), (8, 3513961), (11, 2555608), (22, 1277804), (44, 638902), (88, 319451), (113, 248776), (121, 232328), (226, 124388), (242, 116164), (257, 109384), (452, 62194), (484, 58082), (514, 54692), (904, 31097), (968, 29041), (1028, 27346), (1243, 22616), (2056, 13673), (2486, 11308), (2827, 9944), (4972, 5654)]