28240992

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1$

素因数の和:445

約数の個数: 144

約数和(自身を含む): 91269360

約数和(自身を除く): 63028368

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 19, 24, 26, 32, 36, 38, 39, 48, 52, 57, 72, 76, 78, 96, 104, 114, 117, 144, 152, 156, 171, 208, 228, 234, 247, 288, 304, 312, 342, 397, 416, 456, 468, 494, 608, 624, 684, 741, 794, 912, 936, 988, 1191, 1248, 1368, 1482, 1588, 1824, 1872, 1976, 2223, 2382, 2736, 2964, 3176, 3573, 3744, 3952, 4446, 4764, 5161, 5472, 5928, 6352, 7146, 7543, 7904, 8892, 9528, 10322, 11856, 12704, 14292, 15086, 15483, 17784, 19056, 20644, 22629, 23712, 28584, 30172, 30966, 35568, 38112, 41288, 45258, 46449, 57168, 60344, 61932, 67887, 71136, 82576, 90516, 92898, 98059, 114336, 120688, 123864, 135774, 165152, 181032, 185796, 196118, 241376, 247728, 271548, 294177, 362064, 371592, 392236, 495456, 543096, 588354, 724128, 743184, 784472, 882531, 1086192, 1176708, 1486368, 1568944, 1765062, 2172384, 2353416, 3137888, 3530124, 4706832, 7060248, 9413664, 14120496, 28240992]

約数ペア:

[(1, 28240992), (2, 14120496), (3, 9413664), (4, 7060248), (6, 4706832), (8, 3530124), (9, 3137888), (12, 2353416), (13, 2172384), (16, 1765062), (18, 1568944), (19, 1486368), (24, 1176708), (26, 1086192), (32, 882531), (36, 784472), (38, 743184), (39, 724128), (48, 588354), (52, 543096), (57, 495456), (72, 392236), (76, 371592), (78, 362064), (96, 294177), (104, 271548), (114, 247728), (117, 241376), (144, 196118), (152, 185796), (156, 181032), (171, 165152), (208, 135774), (228, 123864), (234, 120688), (247, 114336), (288, 98059), (304, 92898), (312, 90516), (342, 82576), (397, 71136), (416, 67887), (456, 61932), (468, 60344), (494, 57168), (608, 46449), (624, 45258), (684, 41288), (741, 38112), (794, 35568), (912, 30966), (936, 30172), (988, 28584), (1191, 23712), (1248, 22629), (1368, 20644), (1482, 19056), (1588, 17784), (1824, 15483), (1872, 15086), (1976, 14292), (2223, 12704), (2382, 11856), (2736, 10322), (2964, 9528), (3176, 8892), (3573, 7904), (3744, 7543), (3952, 7146), (4446, 6352), (4764, 5928), (5161, 5472)]