28211456

素因数分解:

$2^8\times 7^2\times {\mathrm{13}}^1\times {\mathrm{173}}^1$

素因数の和:216

約数の個数: 108

約数和(自身を含む): 70953372

約数和(自身を除く): 42741916

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 49, 52, 56, 64, 91, 98, 104, 112, 128, 173, 182, 196, 208, 224, 256, 346, 364, 392, 416, 448, 637, 692, 728, 784, 832, 896, 1211, 1274, 1384, 1456, 1568, 1664, 1792, 2249, 2422, 2548, 2768, 2912, 3136, 3328, 4498, 4844, 5096, 5536, 5824, 6272, 8477, 8996, 9688, 10192, 11072, 11648, 12544, 15743, 16954, 17992, 19376, 20384, 22144, 23296, 31486, 33908, 35984, 38752, 40768, 44288, 62972, 67816, 71968, 77504, 81536, 110201, 125944, 135632, 143936, 155008, 163072, 220402, 251888, 271264, 287872, 310016, 440804, 503776, 542528, 575744, 881608, 1007552, 1085056, 1763216, 2015104, 2170112, 3526432, 4030208, 7052864, 14105728, 28211456]

約数ペア:

[(1, 28211456), (2, 14105728), (4, 7052864), (7, 4030208), (8, 3526432), (13, 2170112), (14, 2015104), (16, 1763216), (26, 1085056), (28, 1007552), (32, 881608), (49, 575744), (52, 542528), (56, 503776), (64, 440804), (91, 310016), (98, 287872), (104, 271264), (112, 251888), (128, 220402), (173, 163072), (182, 155008), (196, 143936), (208, 135632), (224, 125944), (256, 110201), (346, 81536), (364, 77504), (392, 71968), (416, 67816), (448, 62972), (637, 44288), (692, 40768), (728, 38752), (784, 35984), (832, 33908), (896, 31486), (1211, 23296), (1274, 22144), (1384, 20384), (1456, 19376), (1568, 17992), (1664, 16954), (1792, 15743), (2249, 12544), (2422, 11648), (2548, 11072), (2768, 10192), (2912, 9688), (3136, 8996), (3328, 8477), (4498, 6272), (4844, 5824), (5096, 5536)]