28689648

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1999}}^1$

素因数の和:2046

約数の個数: 80

約数和(自身を含む): 83328000

約数和(自身を除く): 54638352

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 23, 24, 26, 39, 46, 48, 52, 69, 78, 92, 104, 138, 156, 184, 208, 276, 299, 312, 368, 552, 598, 624, 897, 1104, 1196, 1794, 1999, 2392, 3588, 3998, 4784, 5997, 7176, 7996, 11994, 14352, 15992, 23988, 25987, 31984, 45977, 47976, 51974, 77961, 91954, 95952, 103948, 137931, 155922, 183908, 207896, 275862, 311844, 367816, 415792, 551724, 597701, 623688, 735632, 1103448, 1195402, 1247376, 1793103, 2206896, 2390804, 3586206, 4781608, 7172412, 9563216, 14344824, 28689648]

約数ペア:

[(1, 28689648), (2, 14344824), (3, 9563216), (4, 7172412), (6, 4781608), (8, 3586206), (12, 2390804), (13, 2206896), (16, 1793103), (23, 1247376), (24, 1195402), (26, 1103448), (39, 735632), (46, 623688), (48, 597701), (52, 551724), (69, 415792), (78, 367816), (92, 311844), (104, 275862), (138, 207896), (156, 183908), (184, 155922), (208, 137931), (276, 103948), (299, 95952), (312, 91954), (368, 77961), (552, 51974), (598, 47976), (624, 45977), (897, 31984), (1104, 25987), (1196, 23988), (1794, 15992), (1999, 14352), (2392, 11994), (3588, 7996), (3998, 7176), (4784, 5997)]