278860480

素因数分解:

$2^6\times 5^1\times {\mathrm{871439}}^1$

素因数の和:871456

約数の個数: 28

約数和(自身を含む): 664037280

約数和(自身を除く): 385176800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 871439, 1742878, 3485756, 4357195, 6971512, 8714390, 13943024, 17428780, 27886048, 34857560, 55772096, 69715120, 139430240, 278860480]

約数ペア:

[(1, 278860480), (2, 139430240), (4, 69715120), (5, 55772096), (8, 34857560), (10, 27886048), (16, 17428780), (20, 13943024), (32, 8714390), (40, 6971512), (64, 4357195), (80, 3485756), (160, 1742878), (320, 871439)]