81516071

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:168

約数の個数: 64

約数和(自身を含む): 116121600

約数和(自身を除く): 34605529

約数列:

[1, 7, 13, 17, 23, 29, 79, 91, 119, 161, 203, 221, 299, 377, 391, 493, 553, 667, 1027, 1343, 1547, 1817, 2093, 2291, 2639, 2737, 3451, 4669, 5083, 6409, 7189, 8671, 9401, 11339, 12719, 16037, 17459, 23621, 29783, 30889, 35581, 38947, 44863, 52693, 60697, 79373, 122213, 147407, 165347, 208481, 216223, 272629, 368851, 401557, 506311, 685009, 895781, 1031849, 2810899, 3544177, 4795063, 6270467, 11645153, 81516071]

約数ペア:

[(1, 81516071), (7, 11645153), (13, 6270467), (17, 4795063), (23, 3544177), (29, 2810899), (79, 1031849), (91, 895781), (119, 685009), (161, 506311), (203, 401557), (221, 368851), (299, 272629), (377, 216223), (391, 208481), (493, 165347), (553, 147407), (667, 122213), (1027, 79373), (1343, 60697), (1547, 52693), (1817, 44863), (2093, 38947), (2291, 35581), (2639, 30889), (2737, 29783), (3451, 23621), (4669, 17459), (5083, 16037), (6409, 12719), (7189, 11339), (8671, 9401)]