20199259088

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{811}}^1\times {\mathrm{1277}}^1$

素因数の和:2172

約数の個数: 80

約数和(自身を含む): 41692081536

約数和(自身を除く): 21492822448

約数列:

[1, 2, 4, 8, 16, 23, 46, 53, 92, 106, 184, 212, 368, 424, 811, 848, 1219, 1277, 1622, 2438, 2554, 3244, 4876, 5108, 6488, 9752, 10216, 12976, 18653, 19504, 20432, 29371, 37306, 42983, 58742, 67681, 74612, 85966, 117484, 135362, 149224, 171932, 234968, 270724, 298448, 343864, 469936, 541448, 687728, 988609, 1035647, 1082896, 1556663, 1977218, 2071294, 3113326, 3954436, 4142588, 6226652, 7908872, 8285176, 12453304, 15817744, 16570352, 23819881, 24906608, 47639762, 54889291, 95279524, 109778582, 190559048, 219557164, 381118096, 439114328, 878228656, 1262453693, 2524907386, 5049814772, 10099629544, 20199259088]

約数ペア:

[(1, 20199259088), (2, 10099629544), (4, 5049814772), (8, 2524907386), (16, 1262453693), (23, 878228656), (46, 439114328), (53, 381118096), (92, 219557164), (106, 190559048), (184, 109778582), (212, 95279524), (368, 54889291), (424, 47639762), (811, 24906608), (848, 23819881), (1219, 16570352), (1277, 15817744), (1622, 12453304), (2438, 8285176), (2554, 7908872), (3244, 6226652), (4876, 4142588), (5108, 3954436), (6488, 3113326), (9752, 2071294), (10216, 1977218), (12976, 1556663), (18653, 1082896), (19504, 1035647), (20432, 988609), (29371, 687728), (37306, 541448), (42983, 469936), (58742, 343864), (67681, 298448), (74612, 270724), (85966, 234968), (117484, 171932), (135362, 149224)]