86899880

素因数分解:

$2^3\times 5^1\times {\mathrm{2172497}}^1$

素因数の和:2172508

約数の個数: 16

約数和(自身を含む): 195524820

約数和(自身を除く): 108624940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2172497, 4344994, 8689988, 10862485, 17379976, 21724970, 43449940, 86899880]

約数ペア:

[(1, 86899880), (2, 43449940), (4, 21724970), (5, 17379976), (8, 10862485), (10, 8689988), (20, 4344994), (40, 2172497)]