1781039360

素因数分解:

$2^8\times 5^1\times {\mathrm{43}}^1\times {\mathrm{32359}}^1$

素因数の和:32423

約数の個数: 72

約数和(自身を含む): 4365493440

約数和(自身を除く): 2584454080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 256, 320, 344, 430, 640, 688, 860, 1280, 1376, 1720, 2752, 3440, 5504, 6880, 11008, 13760, 27520, 32359, 55040, 64718, 129436, 161795, 258872, 323590, 517744, 647180, 1035488, 1294360, 1391437, 2070976, 2588720, 2782874, 4141952, 5177440, 5565748, 6957185, 8283904, 10354880, 11131496, 13914370, 20709760, 22262992, 27828740, 41419520, 44525984, 55657480, 89051968, 111314960, 178103936, 222629920, 356207872, 445259840, 890519680, 1781039360]

約数ペア:

[(1, 1781039360), (2, 890519680), (4, 445259840), (5, 356207872), (8, 222629920), (10, 178103936), (16, 111314960), (20, 89051968), (32, 55657480), (40, 44525984), (43, 41419520), (64, 27828740), (80, 22262992), (86, 20709760), (128, 13914370), (160, 11131496), (172, 10354880), (215, 8283904), (256, 6957185), (320, 5565748), (344, 5177440), (430, 4141952), (640, 2782874), (688, 2588720), (860, 2070976), (1280, 1391437), (1376, 1294360), (1720, 1035488), (2752, 647180), (3440, 517744), (5504, 323590), (6880, 258872), (11008, 161795), (13760, 129436), (27520, 64718), (32359, 55040)]