158274320

素因数分解:

$2^4\times 5^1\times {\mathrm{1978429}}^1$

素因数の和:1978442

約数の個数: 20

約数和(自身を含む): 367987980

約数和(自身を除く): 209713660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1978429, 3956858, 7913716, 9892145, 15827432, 19784290, 31654864, 39568580, 79137160, 158274320]

約数ペア:

[(1, 158274320), (2, 79137160), (4, 39568580), (5, 31654864), (8, 19784290), (10, 15827432), (16, 9892145), (20, 7913716), (40, 3956858), (80, 1978429)]