81705776

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{397}}^1\times {\mathrm{677}}^1$

素因数の和:1101

約数の個数: 40

約数和(自身を含む): 167303280

約数和(自身を除く): 85597504

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 397, 677, 794, 1354, 1588, 2708, 3176, 5416, 6352, 7543, 10832, 12863, 15086, 25726, 30172, 51452, 60344, 102904, 120688, 205808, 268769, 537538, 1075076, 2150152, 4300304, 5106611, 10213222, 20426444, 40852888, 81705776]

約数ペア:

[(1, 81705776), (2, 40852888), (4, 20426444), (8, 10213222), (16, 5106611), (19, 4300304), (38, 2150152), (76, 1075076), (152, 537538), (304, 268769), (397, 205808), (677, 120688), (794, 102904), (1354, 60344), (1588, 51452), (2708, 30172), (3176, 25726), (5416, 15086), (6352, 12863), (7543, 10832)]