20446990

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{5099}}^1$

素因数の和:5507

約数の個数: 16

約数和(自身を含む): 36903600

約数和(自身を除く): 16456610

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 5099, 10198, 25495, 50990, 2044699, 4089398, 10223495, 20446990]

約数ペア:

[(1, 20446990), (2, 10223495), (5, 4089398), (10, 2044699), (401, 50990), (802, 25495), (2005, 10198), (4010, 5099)]