71178280

素因数分解:

$2^3\times 5^1\times {\mathrm{1779457}}^1$

素因数の和:1779468

約数の個数: 16

約数和(自身を含む): 160151220

約数和(自身を除く): 88972940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1779457, 3558914, 7117828, 8897285, 14235656, 17794570, 35589140, 71178280]

約数ペア:

[(1, 71178280), (2, 35589140), (4, 17794570), (5, 14235656), (8, 8897285), (10, 7117828), (20, 3558914), (40, 1779457)]