20351480

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{13751}}^1$

素因数の和:13799

約数の個数: 32

約数和(自身を含む): 47031840

約数和(自身を除く): 26680360

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 13751, 27502, 55004, 68755, 110008, 137510, 275020, 508787, 550040, 1017574, 2035148, 2543935, 4070296, 5087870, 10175740, 20351480]

約数ペア:

[(1, 20351480), (2, 10175740), (4, 5087870), (5, 4070296), (8, 2543935), (10, 2035148), (20, 1017574), (37, 550040), (40, 508787), (74, 275020), (148, 137510), (185, 110008), (296, 68755), (370, 55004), (740, 27502), (1480, 13751)]