20281163008

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{911}}^1$

素因数の和:1168

約数の個数: 144

約数和(自身を含む): 44739072000

約数和(自身を除く): 24457908992

約数列:

[1, 2, 4, 8, 16, 19, 23, 32, 38, 46, 64, 76, 92, 128, 152, 184, 199, 256, 304, 368, 398, 437, 608, 736, 796, 874, 911, 1216, 1472, 1592, 1748, 1822, 2432, 2944, 3184, 3496, 3644, 3781, 4577, 4864, 5888, 6368, 6992, 7288, 7562, 9154, 12736, 13984, 14576, 15124, 17309, 18308, 20953, 25472, 27968, 29152, 30248, 34618, 36616, 41906, 50944, 55936, 58304, 60496, 69236, 73232, 83812, 86963, 111872, 116608, 120992, 138472, 146464, 167624, 173926, 181289, 233216, 241984, 276944, 292928, 335248, 347852, 362578, 398107, 483968, 553888, 585856, 670496, 695704, 725156, 796214, 967936, 1107776, 1171712, 1340992, 1391408, 1450312, 1592428, 2215552, 2681984, 2782816, 2900624, 3184856, 3444491, 4169647, 4431104, 5363968, 5565632, 5801248, 6369712, 6888982, 8339294, 11131264, 11602496, 12739424, 13777964, 16678588, 22262528, 23204992, 25478848, 27555928, 33357176, 46409984, 50957696, 55111856, 66714352, 79223293, 101915392, 110223712, 133428704, 158446586, 220447424, 266857408, 316893172, 440894848, 533714816, 633786344, 881789696, 1067429632, 1267572688, 2535145376, 5070290752, 10140581504, 20281163008]

約数ペア:

[(1, 20281163008), (2, 10140581504), (4, 5070290752), (8, 2535145376), (16, 1267572688), (19, 1067429632), (23, 881789696), (32, 633786344), (38, 533714816), (46, 440894848), (64, 316893172), (76, 266857408), (92, 220447424), (128, 158446586), (152, 133428704), (184, 110223712), (199, 101915392), (256, 79223293), (304, 66714352), (368, 55111856), (398, 50957696), (437, 46409984), (608, 33357176), (736, 27555928), (796, 25478848), (874, 23204992), (911, 22262528), (1216, 16678588), (1472, 13777964), (1592, 12739424), (1748, 11602496), (1822, 11131264), (2432, 8339294), (2944, 6888982), (3184, 6369712), (3496, 5801248), (3644, 5565632), (3781, 5363968), (4577, 4431104), (4864, 4169647), (5888, 3444491), (6368, 3184856), (6992, 2900624), (7288, 2782816), (7562, 2681984), (9154, 2215552), (12736, 1592428), (13984, 1450312), (14576, 1391408), (15124, 1340992), (17309, 1171712), (18308, 1107776), (20953, 967936), (25472, 796214), (27968, 725156), (29152, 695704), (30248, 670496), (34618, 585856), (36616, 553888), (41906, 483968), (50944, 398107), (55936, 362578), (58304, 347852), (60496, 335248), (69236, 292928), (73232, 276944), (83812, 241984), (86963, 233216), (111872, 181289), (116608, 173926), (120992, 167624), (138472, 146464)]