28478750

素因数分解:

$2^1\times 5^4\times {\mathrm{22783}}^1$

素因数の和:22805

約数の個数: 20

約数和(自身を含む): 53382912

約数和(自身を除く): 24904162

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 625, 1250, 22783, 45566, 113915, 227830, 569575, 1139150, 2847875, 5695750, 14239375, 28478750]

約数ペア:

[(1, 28478750), (2, 14239375), (5, 5695750), (10, 2847875), (25, 1139150), (50, 569575), (125, 227830), (250, 113915), (625, 45566), (1250, 22783)]