20340790

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28649}}^1$

素因数の和:28727

約数の個数: 16

約数和(自身を含む): 37130400

約数和(自身を除く): 16789610

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 28649, 57298, 143245, 286490, 2034079, 4068158, 10170395, 20340790]

約数ペア:

[(1, 20340790), (2, 10170395), (5, 4068158), (10, 2034079), (71, 286490), (142, 143245), (355, 57298), (710, 28649)]