19985472

素因数分解:

$2^6\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1$

素因数の和:205

約数の個数: 168

約数和(自身を含む): 65736216

約数和(自身を除く): 45750744

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 17, 18, 24, 26, 32, 34, 36, 39, 48, 51, 52, 64, 68, 72, 78, 96, 102, 104, 117, 136, 144, 153, 156, 157, 192, 204, 208, 221, 234, 272, 288, 306, 312, 314, 408, 416, 442, 468, 471, 544, 576, 612, 624, 628, 663, 816, 832, 884, 936, 942, 1088, 1224, 1248, 1256, 1326, 1413, 1632, 1768, 1872, 1884, 1989, 2041, 2448, 2496, 2512, 2652, 2669, 2826, 3264, 3536, 3744, 3768, 3978, 4082, 4896, 5024, 5304, 5338, 5652, 6123, 7072, 7488, 7536, 7956, 8007, 8164, 9792, 10048, 10608, 10676, 11304, 12246, 14144, 15072, 15912, 16014, 16328, 18369, 21216, 21352, 22608, 24021, 24492, 30144, 31824, 32028, 32656, 34697, 36738, 42432, 42704, 45216, 48042, 48984, 63648, 64056, 65312, 69394, 73476, 85408, 90432, 96084, 97968, 104091, 127296, 128112, 130624, 138788, 146952, 170816, 192168, 195936, 208182, 256224, 277576, 293904, 312273, 384336, 391872, 416364, 512448, 555152, 587808, 624546, 768672, 832728, 1110304, 1175616, 1249092, 1537344, 1665456, 2220608, 2498184, 3330912, 4996368, 6661824, 9992736, 19985472]

約数ペア:

[(1, 19985472), (2, 9992736), (3, 6661824), (4, 4996368), (6, 3330912), (8, 2498184), (9, 2220608), (12, 1665456), (13, 1537344), (16, 1249092), (17, 1175616), (18, 1110304), (24, 832728), (26, 768672), (32, 624546), (34, 587808), (36, 555152), (39, 512448), (48, 416364), (51, 391872), (52, 384336), (64, 312273), (68, 293904), (72, 277576), (78, 256224), (96, 208182), (102, 195936), (104, 192168), (117, 170816), (136, 146952), (144, 138788), (153, 130624), (156, 128112), (157, 127296), (192, 104091), (204, 97968), (208, 96084), (221, 90432), (234, 85408), (272, 73476), (288, 69394), (306, 65312), (312, 64056), (314, 63648), (408, 48984), (416, 48042), (442, 45216), (468, 42704), (471, 42432), (544, 36738), (576, 34697), (612, 32656), (624, 32028), (628, 31824), (663, 30144), (816, 24492), (832, 24021), (884, 22608), (936, 21352), (942, 21216), (1088, 18369), (1224, 16328), (1248, 16014), (1256, 15912), (1326, 15072), (1413, 14144), (1632, 12246), (1768, 11304), (1872, 10676), (1884, 10608), (1989, 10048), (2041, 9792), (2448, 8164), (2496, 8007), (2512, 7956), (2652, 7536), (2669, 7488), (2826, 7072), (3264, 6123), (3536, 5652), (3744, 5338), (3768, 5304), (3978, 5024), (4082, 4896)]