81855116

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{613}}^1$

素因数の和:894

約数の個数: 48

約数和(自身を含む): 173295360

約数和(自身を除く): 91440244

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 251, 266, 502, 532, 613, 1004, 1226, 1757, 2452, 3514, 4291, 4769, 7028, 8582, 9538, 11647, 17164, 19076, 23294, 33383, 46588, 66766, 81529, 133532, 153863, 163058, 307726, 326116, 615452, 1077041, 2154082, 2923397, 4308164, 5846794, 11693588, 20463779, 40927558, 81855116]

約数ペア:

[(1, 81855116), (2, 40927558), (4, 20463779), (7, 11693588), (14, 5846794), (19, 4308164), (28, 2923397), (38, 2154082), (76, 1077041), (133, 615452), (251, 326116), (266, 307726), (502, 163058), (532, 153863), (613, 133532), (1004, 81529), (1226, 66766), (1757, 46588), (2452, 33383), (3514, 23294), (4291, 19076), (4769, 17164), (7028, 11647), (8582, 9538)]