28642768

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{347}}^1$

素因数の和:440

約数の個数: 80

約数和(自身を含む): 70424064

約数和(自身を除く): 41781296

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 67, 77, 88, 112, 134, 154, 176, 268, 308, 347, 469, 536, 616, 694, 737, 938, 1072, 1232, 1388, 1474, 1876, 2429, 2776, 2948, 3752, 3817, 4858, 5159, 5552, 5896, 7504, 7634, 9716, 10318, 11792, 15268, 19432, 20636, 23249, 26719, 30536, 38864, 41272, 46498, 53438, 61072, 82544, 92996, 106876, 162743, 185992, 213752, 255739, 325486, 371984, 427504, 511478, 650972, 1022956, 1301944, 1790173, 2045912, 2603888, 3580346, 4091824, 7160692, 14321384, 28642768]

約数ペア:

[(1, 28642768), (2, 14321384), (4, 7160692), (7, 4091824), (8, 3580346), (11, 2603888), (14, 2045912), (16, 1790173), (22, 1301944), (28, 1022956), (44, 650972), (56, 511478), (67, 427504), (77, 371984), (88, 325486), (112, 255739), (134, 213752), (154, 185992), (176, 162743), (268, 106876), (308, 92996), (347, 82544), (469, 61072), (536, 53438), (616, 46498), (694, 41272), (737, 38864), (938, 30536), (1072, 26719), (1232, 23249), (1388, 20636), (1474, 19432), (1876, 15268), (2429, 11792), (2776, 10318), (2948, 9716), (3752, 7634), (3817, 7504), (4858, 5896), (5159, 5552)]