171951280

素因数分解:

$2^4\times 5^1\times {\mathrm{2149391}}^1$

素因数の和:2149404

約数の個数: 20

約数和(自身を含む): 399786912

約数和(自身を除く): 227835632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2149391, 4298782, 8597564, 10746955, 17195128, 21493910, 34390256, 42987820, 85975640, 171951280]

約数ペア:

[(1, 171951280), (2, 85975640), (4, 42987820), (5, 34390256), (8, 21493910), (10, 17195128), (16, 10746955), (20, 8597564), (40, 4298782), (80, 2149391)]