81861296

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{6551}}^1$

素因数の和:6641

約数の個数: 40

約数和(自身を含む): 175488768

約数和(自身を除く): 93627472

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 71, 88, 142, 176, 284, 568, 781, 1136, 1562, 3124, 6248, 6551, 12496, 13102, 26204, 52408, 72061, 104816, 144122, 288244, 465121, 576488, 930242, 1152976, 1860484, 3720968, 5116331, 7441936, 10232662, 20465324, 40930648, 81861296]

約数ペア:

[(1, 81861296), (2, 40930648), (4, 20465324), (8, 10232662), (11, 7441936), (16, 5116331), (22, 3720968), (44, 1860484), (71, 1152976), (88, 930242), (142, 576488), (176, 465121), (284, 288244), (568, 144122), (781, 104816), (1136, 72061), (1562, 52408), (3124, 26204), (6248, 13102), (6551, 12496)]