81307744

素因数分解:

$2^5\times 7^1\times {\mathrm{47}}^1\times {\mathrm{7723}}^1$

素因数の和:7787

約数の個数: 48

約数和(自身を含む): 186859008

約数和(自身を除く): 105551264

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 47, 56, 94, 112, 188, 224, 329, 376, 658, 752, 1316, 1504, 2632, 5264, 7723, 10528, 15446, 30892, 54061, 61784, 108122, 123568, 216244, 247136, 362981, 432488, 725962, 864976, 1451924, 1729952, 2540867, 2903848, 5081734, 5807696, 10163468, 11615392, 20326936, 40653872, 81307744]

約数ペア:

[(1, 81307744), (2, 40653872), (4, 20326936), (7, 11615392), (8, 10163468), (14, 5807696), (16, 5081734), (28, 2903848), (32, 2540867), (47, 1729952), (56, 1451924), (94, 864976), (112, 725962), (188, 432488), (224, 362981), (329, 247136), (376, 216244), (658, 123568), (752, 108122), (1316, 61784), (1504, 54061), (2632, 30892), (5264, 15446), (7723, 10528)]