40496990

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{10099}}^1$

素因数の和:10507

約数の個数: 16

約数和(自身を含む): 73083600

約数和(自身を除く): 32586610

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 10099, 20198, 50495, 100990, 4049699, 8099398, 20248495, 40496990]

約数ペア:

[(1, 40496990), (2, 20248495), (5, 8099398), (10, 4049699), (401, 100990), (802, 50495), (2005, 20198), (4010, 10099)]