19742960

素因数分解:

$2^4\times 5^1\times {\mathrm{246787}}^1$

素因数の和:246800

約数の個数: 20

約数和(自身を含む): 45902568

約数和(自身を除く): 26159608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 246787, 493574, 987148, 1233935, 1974296, 2467870, 3948592, 4935740, 9871480, 19742960]

約数ペア:

[(1, 19742960), (2, 9871480), (4, 4935740), (5, 3948592), (8, 2467870), (10, 1974296), (16, 1233935), (20, 987148), (40, 493574), (80, 246787)]