81564364

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{61979}}^1$

素因数の和:62037

約数の個数: 24

約数和(自身を含む): 166602240

約数和(自身を除く): 85037876

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 61979, 123958, 247916, 433853, 867706, 1735412, 2913013, 5826026, 11652052, 20391091, 40782182, 81564364]

約数ペア:

[(1, 81564364), (2, 40782182), (4, 20391091), (7, 11652052), (14, 5826026), (28, 2913013), (47, 1735412), (94, 867706), (188, 433853), (329, 247916), (658, 123958), (1316, 61979)]