80785580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{98519}}^1$

素因数の和:98569

約数の個数: 24

約数和(自身を含む): 173789280

約数和(自身を除く): 93003700

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 98519, 197038, 394076, 492595, 985190, 1970380, 4039279, 8078558, 16157116, 20196395, 40392790, 80785580]

約数ペア:

[(1, 80785580), (2, 40392790), (4, 20196395), (5, 16157116), (10, 8078558), (20, 4039279), (41, 1970380), (82, 985190), (164, 492595), (205, 394076), (410, 197038), (820, 98519)]