313624880

素因数分解:

$2^4\times 5^1\times {\mathrm{3920311}}^1$

素因数の和:3920324

約数の個数: 20

約数和(自身を含む): 729178032

約数和(自身を除く): 415553152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3920311, 7840622, 15681244, 19601555, 31362488, 39203110, 62724976, 78406220, 156812440, 313624880]

約数ペア:

[(1, 313624880), (2, 156812440), (4, 78406220), (5, 62724976), (8, 39203110), (10, 31362488), (16, 19601555), (20, 15681244), (40, 7840622), (80, 3920311)]