28327280

素因数分解:

$2^4\times 5^1\times {\mathrm{354091}}^1$

素因数の和:354104

約数の個数: 20

約数和(自身を含む): 65861112

約数和(自身を除く): 37533832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 354091, 708182, 1416364, 1770455, 2832728, 3540910, 5665456, 7081820, 14163640, 28327280]

約数ペア:

[(1, 28327280), (2, 14163640), (4, 7081820), (5, 5665456), (8, 3540910), (10, 2832728), (16, 1770455), (20, 1416364), (40, 708182), (80, 354091)]