20165457320

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{349}}^1\times {\mathrm{39041}}^1$

素因数の和:39438

約数の個数: 64

約数和(自身を含む): 46733274000

約数和(自身を除く): 26567816680

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 349, 370, 698, 740, 1396, 1480, 1745, 2792, 3490, 6980, 12913, 13960, 25826, 39041, 51652, 64565, 78082, 103304, 129130, 156164, 195205, 258260, 312328, 390410, 516520, 780820, 1444517, 1561640, 2889034, 5778068, 7222585, 11556136, 13625309, 14445170, 27250618, 28890340, 54501236, 57780680, 68126545, 109002472, 136253090, 272506180, 504136433, 545012360, 1008272866, 2016545732, 2520682165, 4033091464, 5041364330, 10082728660, 20165457320]

約数ペア:

[(1, 20165457320), (2, 10082728660), (4, 5041364330), (5, 4033091464), (8, 2520682165), (10, 2016545732), (20, 1008272866), (37, 545012360), (40, 504136433), (74, 272506180), (148, 136253090), (185, 109002472), (296, 68126545), (349, 57780680), (370, 54501236), (698, 28890340), (740, 27250618), (1396, 14445170), (1480, 13625309), (1745, 11556136), (2792, 7222585), (3490, 5778068), (6980, 2889034), (12913, 1561640), (13960, 1444517), (25826, 780820), (39041, 516520), (51652, 390410), (64565, 312328), (78082, 258260), (103304, 195205), (129130, 156164)]