20720231840

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1681837}}^1$

素因数の和:1681870

約数の個数: 96

約数和(自身を含む): 61030537344

約数和(自身を除く): 40310305504

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 160, 176, 220, 224, 280, 308, 352, 385, 440, 560, 616, 770, 880, 1120, 1232, 1540, 1760, 2464, 3080, 6160, 12320, 1681837, 3363674, 6727348, 8409185, 11772859, 13454696, 16818370, 18500207, 23545718, 26909392, 33636740, 37000414, 47091436, 53818784, 58864295, 67273480, 74000828, 92501035, 94182872, 117728590, 129501449, 134546960, 148001656, 185002070, 188365744, 235457180, 259002898, 269093920, 296003312, 370004140, 376731488, 470914360, 518005796, 592006624, 647507245, 740008280, 941828720, 1036011592, 1295014490, 1480016560, 1883657440, 2072023184, 2590028980, 2960033120, 4144046368, 5180057960, 10360115920, 20720231840]

約数ペア:

[(1, 20720231840), (2, 10360115920), (4, 5180057960), (5, 4144046368), (7, 2960033120), (8, 2590028980), (10, 2072023184), (11, 1883657440), (14, 1480016560), (16, 1295014490), (20, 1036011592), (22, 941828720), (28, 740008280), (32, 647507245), (35, 592006624), (40, 518005796), (44, 470914360), (55, 376731488), (56, 370004140), (70, 296003312), (77, 269093920), (80, 259002898), (88, 235457180), (110, 188365744), (112, 185002070), (140, 148001656), (154, 134546960), (160, 129501449), (176, 117728590), (220, 94182872), (224, 92501035), (280, 74000828), (308, 67273480), (352, 58864295), (385, 53818784), (440, 47091436), (560, 37000414), (616, 33636740), (770, 26909392), (880, 23545718), (1120, 18500207), (1232, 16818370), (1540, 13454696), (1760, 11772859), (2464, 8409185), (3080, 6727348), (6160, 3363674), (12320, 1681837)]