28786240

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:276

約数の個数: 112

約数和(自身を含む): 79881984

約数和(自身を除く): 51095744

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 71, 80, 112, 140, 142, 160, 181, 224, 280, 284, 320, 355, 362, 448, 497, 560, 568, 710, 724, 905, 994, 1120, 1136, 1267, 1420, 1448, 1810, 1988, 2240, 2272, 2485, 2534, 2840, 2896, 3620, 3976, 4544, 4970, 5068, 5680, 5792, 6335, 7240, 7952, 9940, 10136, 11360, 11584, 12670, 12851, 14480, 15904, 19880, 20272, 22720, 25340, 25702, 28960, 31808, 39760, 40544, 50680, 51404, 57920, 64255, 79520, 81088, 89957, 101360, 102808, 128510, 159040, 179914, 202720, 205616, 257020, 359828, 405440, 411232, 449785, 514040, 719656, 822464, 899570, 1028080, 1439312, 1799140, 2056160, 2878624, 3598280, 4112320, 5757248, 7196560, 14393120, 28786240]

約数ペア:

[(1, 28786240), (2, 14393120), (4, 7196560), (5, 5757248), (7, 4112320), (8, 3598280), (10, 2878624), (14, 2056160), (16, 1799140), (20, 1439312), (28, 1028080), (32, 899570), (35, 822464), (40, 719656), (56, 514040), (64, 449785), (70, 411232), (71, 405440), (80, 359828), (112, 257020), (140, 205616), (142, 202720), (160, 179914), (181, 159040), (224, 128510), (280, 102808), (284, 101360), (320, 89957), (355, 81088), (362, 79520), (448, 64255), (497, 57920), (560, 51404), (568, 50680), (710, 40544), (724, 39760), (905, 31808), (994, 28960), (1120, 25702), (1136, 25340), (1267, 22720), (1420, 20272), (1448, 19880), (1810, 15904), (1988, 14480), (2240, 12851), (2272, 12670), (2485, 11584), (2534, 11360), (2840, 10136), (2896, 9940), (3620, 7952), (3976, 7240), (4544, 6335), (4970, 5792), (5068, 5680)]