81388816

素因数分解:

$2^4\times {\mathrm{257}}^1\times {\mathrm{19793}}^1$

素因数の和:20058

約数の個数: 20

約数和(自身を含む): 158312412

約数和(自身を除く): 76923596

約数列:

[1, 2, 4, 8, 16, 257, 514, 1028, 2056, 4112, 19793, 39586, 79172, 158344, 316688, 5086801, 10173602, 20347204, 40694408, 81388816]

約数ペア:

[(1, 81388816), (2, 40694408), (4, 20347204), (8, 10173602), (16, 5086801), (257, 316688), (514, 158344), (1028, 79172), (2056, 39586), (4112, 19793)]