51984080

素因数分解:

$2^4\times 5^1\times {\mathrm{649801}}^1$

素因数の和:649814

約数の個数: 20

約数和(自身を含む): 120863172

約数和(自身を除く): 68879092

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 649801, 1299602, 2599204, 3249005, 5198408, 6498010, 10396816, 12996020, 25992040, 51984080]

約数ペア:

[(1, 51984080), (2, 25992040), (4, 12996020), (5, 10396816), (8, 6498010), (10, 5198408), (16, 3249005), (20, 2599204), (40, 1299602), (80, 649801)]