28291370

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{39847}}^1$

素因数の和:39925

約数の個数: 16

約数和(自身を含む): 51643008

約数和(自身を除く): 23351638

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 39847, 79694, 199235, 398470, 2829137, 5658274, 14145685, 28291370]

約数ペア:

[(1, 28291370), (2, 14145685), (5, 5658274), (10, 2829137), (71, 398470), (142, 199235), (355, 79694), (710, 39847)]