81136688

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{266897}}^1$

素因数の和:266924

約数の個数: 20

約数和(自身を含む): 165476760

約数和(自身を除く): 84340072

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 266897, 533794, 1067588, 2135176, 4270352, 5071043, 10142086, 20284172, 40568344, 81136688]

約数ペア:

[(1, 81136688), (2, 40568344), (4, 20284172), (8, 10142086), (16, 5071043), (19, 4270352), (38, 2135176), (76, 1067588), (152, 533794), (304, 266897)]