28538328

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{179}}^1$

素因数の和:281

約数の個数: 128

約数和(自身を含む): 89510400

約数和(自身を除く): 60972072

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 52, 56, 73, 78, 84, 91, 104, 146, 156, 168, 179, 182, 219, 273, 292, 312, 358, 364, 438, 511, 537, 546, 584, 716, 728, 876, 949, 1022, 1074, 1092, 1253, 1432, 1533, 1752, 1898, 2044, 2148, 2184, 2327, 2506, 2847, 3066, 3759, 3796, 4088, 4296, 4654, 5012, 5694, 6132, 6643, 6981, 7518, 7592, 9308, 10024, 11388, 12264, 13067, 13286, 13962, 15036, 16289, 18616, 19929, 22776, 26134, 26572, 27924, 30072, 32578, 39201, 39858, 48867, 52268, 53144, 55848, 65156, 78402, 79716, 91469, 97734, 104536, 130312, 156804, 159432, 169871, 182938, 195468, 274407, 313608, 339742, 365876, 390936, 509613, 548814, 679484, 731752, 1019226, 1097628, 1189097, 1358968, 2038452, 2195256, 2378194, 3567291, 4076904, 4756388, 7134582, 9512776, 14269164, 28538328]

約数ペア:

[(1, 28538328), (2, 14269164), (3, 9512776), (4, 7134582), (6, 4756388), (7, 4076904), (8, 3567291), (12, 2378194), (13, 2195256), (14, 2038452), (21, 1358968), (24, 1189097), (26, 1097628), (28, 1019226), (39, 731752), (42, 679484), (52, 548814), (56, 509613), (73, 390936), (78, 365876), (84, 339742), (91, 313608), (104, 274407), (146, 195468), (156, 182938), (168, 169871), (179, 159432), (182, 156804), (219, 130312), (273, 104536), (292, 97734), (312, 91469), (358, 79716), (364, 78402), (438, 65156), (511, 55848), (537, 53144), (546, 52268), (584, 48867), (716, 39858), (728, 39201), (876, 32578), (949, 30072), (1022, 27924), (1074, 26572), (1092, 26134), (1253, 22776), (1432, 19929), (1533, 18616), (1752, 16289), (1898, 15036), (2044, 13962), (2148, 13286), (2184, 13067), (2327, 12264), (2506, 11388), (2847, 10024), (3066, 9308), (3759, 7592), (3796, 7518), (4088, 6981), (4296, 6643), (4654, 6132), (5012, 5694)]