20924180

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{2609}}^1$

素因数の和:3019

約数の個数: 24

約数和(自身を含む): 44067240

約数和(自身を除く): 23143060

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 2609, 4010, 5218, 8020, 10436, 13045, 26090, 52180, 1046209, 2092418, 4184836, 5231045, 10462090, 20924180]

約数ペア:

[(1, 20924180), (2, 10462090), (4, 5231045), (5, 4184836), (10, 2092418), (20, 1046209), (401, 52180), (802, 26090), (1604, 13045), (2005, 10436), (2609, 8020), (4010, 5218)]