81917244

素因数分解:

$2^2\times 3^5\times {\mathrm{71}}^1\times {\mathrm{1187}}^1$

素因数の和:1277

約数の個数: 72

約数和(自身を含む): 217945728

約数和(自身を除く): 136028484

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 71, 81, 108, 142, 162, 213, 243, 284, 324, 426, 486, 639, 852, 972, 1187, 1278, 1917, 2374, 2556, 3561, 3834, 4748, 5751, 7122, 7668, 10683, 11502, 14244, 17253, 21366, 23004, 32049, 34506, 42732, 64098, 69012, 84277, 96147, 128196, 168554, 192294, 252831, 288441, 337108, 384588, 505662, 576882, 758493, 1011324, 1153764, 1516986, 2275479, 3033972, 4550958, 6826437, 9101916, 13652874, 20479311, 27305748, 40958622, 81917244]

約数ペア:

[(1, 81917244), (2, 40958622), (3, 27305748), (4, 20479311), (6, 13652874), (9, 9101916), (12, 6826437), (18, 4550958), (27, 3033972), (36, 2275479), (54, 1516986), (71, 1153764), (81, 1011324), (108, 758493), (142, 576882), (162, 505662), (213, 384588), (243, 337108), (284, 288441), (324, 252831), (426, 192294), (486, 168554), (639, 128196), (852, 96147), (972, 84277), (1187, 69012), (1278, 64098), (1917, 42732), (2374, 34506), (2556, 32049), (3561, 23004), (3834, 21366), (4748, 17253), (5751, 14244), (7122, 11502), (7668, 10683)]