157420420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{183047}}^1$

素因数の和:183099

約数の個数: 24

約数和(自身を含む): 338272704

約数和(自身を除く): 180852284

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 183047, 366094, 732188, 915235, 1830470, 3660940, 7871021, 15742042, 31484084, 39355105, 78710210, 157420420]

約数ペア:

[(1, 157420420), (2, 78710210), (4, 39355105), (5, 31484084), (10, 15742042), (20, 7871021), (43, 3660940), (86, 1830470), (172, 915235), (215, 732188), (430, 366094), (860, 183047)]