28665728

素因数分解:

$2^7\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1$

素因数の和:164

約数の個数: 128

約数和(自身を含む): 74027520

約数和(自身を除く): 45361792

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 23, 26, 28, 32, 46, 52, 56, 64, 91, 92, 104, 107, 112, 128, 161, 182, 184, 208, 214, 224, 299, 322, 364, 368, 416, 428, 448, 598, 644, 728, 736, 749, 832, 856, 896, 1196, 1288, 1391, 1456, 1472, 1498, 1664, 1712, 2093, 2392, 2461, 2576, 2782, 2912, 2944, 2996, 3424, 4186, 4784, 4922, 5152, 5564, 5824, 5992, 6848, 8372, 9568, 9737, 9844, 10304, 11128, 11648, 11984, 13696, 16744, 17227, 19136, 19474, 19688, 20608, 22256, 23968, 31993, 33488, 34454, 38272, 38948, 39376, 44512, 47936, 63986, 66976, 68908, 77896, 78752, 89024, 95872, 127972, 133952, 137816, 155792, 157504, 178048, 223951, 255944, 267904, 275632, 311584, 315008, 447902, 511888, 551264, 623168, 895804, 1023776, 1102528, 1246336, 1791608, 2047552, 2205056, 3583216, 4095104, 7166432, 14332864, 28665728]

約数ペア:

[(1, 28665728), (2, 14332864), (4, 7166432), (7, 4095104), (8, 3583216), (13, 2205056), (14, 2047552), (16, 1791608), (23, 1246336), (26, 1102528), (28, 1023776), (32, 895804), (46, 623168), (52, 551264), (56, 511888), (64, 447902), (91, 315008), (92, 311584), (104, 275632), (107, 267904), (112, 255944), (128, 223951), (161, 178048), (182, 157504), (184, 155792), (208, 137816), (214, 133952), (224, 127972), (299, 95872), (322, 89024), (364, 78752), (368, 77896), (416, 68908), (428, 66976), (448, 63986), (598, 47936), (644, 44512), (728, 39376), (736, 38948), (749, 38272), (832, 34454), (856, 33488), (896, 31993), (1196, 23968), (1288, 22256), (1391, 20608), (1456, 19688), (1472, 19474), (1498, 19136), (1664, 17227), (1712, 16744), (2093, 13696), (2392, 11984), (2461, 11648), (2576, 11128), (2782, 10304), (2912, 9844), (2944, 9737), (2996, 9568), (3424, 8372), (4186, 6848), (4784, 5992), (4922, 5824), (5152, 5564)]