128904265

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{193841}}^1$

素因数の和:193872

約数の個数: 16

約数和(自身を含む): 186088320

約数和(自身を除く): 57184055

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 193841, 969205, 1356887, 3682979, 6784435, 18414895, 25780853, 128904265]

約数ペア:

[(1, 128904265), (5, 25780853), (7, 18414895), (19, 6784435), (35, 3682979), (95, 1356887), (133, 969205), (665, 193841)]