19809504

素因数分解:

$2^5\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1$

素因数の和:90

約数の個数: 216

約数和(自身を含む): 68343912

約数和(自身を除く): 48534408

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 13, 16, 18, 22, 24, 26, 32, 33, 36, 37, 39, 44, 48, 52, 66, 72, 74, 78, 88, 96, 99, 104, 111, 117, 132, 143, 144, 148, 156, 169, 176, 198, 208, 222, 234, 264, 286, 288, 296, 312, 333, 338, 352, 396, 407, 416, 429, 444, 468, 481, 507, 528, 572, 592, 624, 666, 676, 792, 814, 858, 888, 936, 962, 1014, 1056, 1144, 1184, 1221, 1248, 1287, 1332, 1352, 1443, 1521, 1584, 1628, 1716, 1776, 1859, 1872, 1924, 2028, 2288, 2442, 2574, 2664, 2704, 2886, 3042, 3168, 3256, 3432, 3552, 3663, 3718, 3744, 3848, 4056, 4329, 4576, 4884, 5148, 5291, 5328, 5408, 5577, 5772, 6084, 6253, 6512, 6864, 7326, 7436, 7696, 8112, 8658, 9768, 10296, 10582, 10656, 11154, 11544, 12168, 12506, 13024, 13728, 14652, 14872, 15392, 15873, 16224, 16731, 17316, 18759, 19536, 20592, 21164, 22308, 23088, 24336, 25012, 29304, 29744, 31746, 33462, 34632, 37518, 39072, 41184, 42328, 44616, 46176, 47619, 48672, 50024, 56277, 58608, 59488, 63492, 66924, 68783, 69264, 75036, 84656, 89232, 95238, 100048, 112554, 117216, 126984, 133848, 137566, 138528, 150072, 169312, 178464, 190476, 200096, 206349, 225108, 253968, 267696, 275132, 300144, 380952, 412698, 450216, 507936, 535392, 550264, 600288, 619047, 761904, 825396, 900432, 1100528, 1238094, 1523808, 1650792, 1800864, 2201056, 2476188, 3301584, 4952376, 6603168, 9904752, 19809504]

約数ペア:

[(1, 19809504), (2, 9904752), (3, 6603168), (4, 4952376), (6, 3301584), (8, 2476188), (9, 2201056), (11, 1800864), (12, 1650792), (13, 1523808), (16, 1238094), (18, 1100528), (22, 900432), (24, 825396), (26, 761904), (32, 619047), (33, 600288), (36, 550264), (37, 535392), (39, 507936), (44, 450216), (48, 412698), (52, 380952), (66, 300144), (72, 275132), (74, 267696), (78, 253968), (88, 225108), (96, 206349), (99, 200096), (104, 190476), (111, 178464), (117, 169312), (132, 150072), (143, 138528), (144, 137566), (148, 133848), (156, 126984), (169, 117216), (176, 112554), (198, 100048), (208, 95238), (222, 89232), (234, 84656), (264, 75036), (286, 69264), (288, 68783), (296, 66924), (312, 63492), (333, 59488), (338, 58608), (352, 56277), (396, 50024), (407, 48672), (416, 47619), (429, 46176), (444, 44616), (468, 42328), (481, 41184), (507, 39072), (528, 37518), (572, 34632), (592, 33462), (624, 31746), (666, 29744), (676, 29304), (792, 25012), (814, 24336), (858, 23088), (888, 22308), (936, 21164), (962, 20592), (1014, 19536), (1056, 18759), (1144, 17316), (1184, 16731), (1221, 16224), (1248, 15873), (1287, 15392), (1332, 14872), (1352, 14652), (1443, 13728), (1521, 13024), (1584, 12506), (1628, 12168), (1716, 11544), (1776, 11154), (1859, 10656), (1872, 10582), (1924, 10296), (2028, 9768), (2288, 8658), (2442, 8112), (2574, 7696), (2664, 7436), (2704, 7326), (2886, 6864), (3042, 6512), (3168, 6253), (3256, 6084), (3432, 5772), (3552, 5577), (3663, 5408), (3718, 5328), (3744, 5291), (3848, 5148), (4056, 4884), (4329, 4576)]