28987120

素因数分解:

$2^4\times 5^1\times {\mathrm{362339}}^1$

素因数の和:362352

約数の個数: 20

約数和(自身を含む): 67395240

約数和(自身を除く): 38408120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 362339, 724678, 1449356, 1811695, 2898712, 3623390, 5797424, 7246780, 14493560, 28987120]

約数ペア:

[(1, 28987120), (2, 14493560), (4, 7246780), (5, 5797424), (8, 3623390), (10, 2898712), (16, 1811695), (20, 1449356), (40, 724678), (80, 362339)]