81220386

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{173}}^1\times {\mathrm{463}}^1$

素因数の和:667

約数の個数: 48

約数和(自身を含む): 177296256

約数和(自身を除く): 96075870

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 169, 173, 338, 346, 463, 507, 519, 926, 1014, 1038, 1389, 2249, 2778, 4498, 6019, 6747, 12038, 13494, 18057, 29237, 36114, 58474, 78247, 80099, 87711, 156494, 160198, 175422, 234741, 240297, 469482, 480594, 1041287, 2082574, 3123861, 6247722, 13536731, 27073462, 40610193, 81220386]

約数ペア:

[(1, 81220386), (2, 40610193), (3, 27073462), (6, 13536731), (13, 6247722), (26, 3123861), (39, 2082574), (78, 1041287), (169, 480594), (173, 469482), (338, 240297), (346, 234741), (463, 175422), (507, 160198), (519, 156494), (926, 87711), (1014, 80099), (1038, 78247), (1389, 58474), (2249, 36114), (2778, 29237), (4498, 18057), (6019, 13494), (6747, 12038)]