68988465

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{991}}^1$

素因数の和:1039

約数の個数: 96

約数和(自身を含む): 155990016

約数和(自身を除く): 87001551

約数列:

[1, 3, 5, 7, 9, 13, 15, 17, 21, 35, 39, 45, 51, 63, 65, 85, 91, 105, 117, 119, 153, 195, 221, 255, 273, 315, 357, 455, 585, 595, 663, 765, 819, 991, 1071, 1105, 1365, 1547, 1785, 1989, 2973, 3315, 4095, 4641, 4955, 5355, 6937, 7735, 8919, 9945, 12883, 13923, 14865, 16847, 20811, 23205, 34685, 38649, 44595, 50541, 62433, 64415, 69615, 84235, 90181, 104055, 115947, 117929, 151623, 193245, 219011, 252705, 270543, 312165, 353787, 450905, 579735, 589645, 657033, 758115, 811629, 1061361, 1095055, 1352715, 1533077, 1768935, 1971099, 3285165, 4058145, 4599231, 5306805, 7665385, 9855495, 13797693, 22996155, 68988465]

約数ペア:

[(1, 68988465), (3, 22996155), (5, 13797693), (7, 9855495), (9, 7665385), (13, 5306805), (15, 4599231), (17, 4058145), (21, 3285165), (35, 1971099), (39, 1768935), (45, 1533077), (51, 1352715), (63, 1095055), (65, 1061361), (85, 811629), (91, 758115), (105, 657033), (117, 589645), (119, 579735), (153, 450905), (195, 353787), (221, 312165), (255, 270543), (273, 252705), (315, 219011), (357, 193245), (455, 151623), (585, 117929), (595, 115947), (663, 104055), (765, 90181), (819, 84235), (991, 69615), (1071, 64415), (1105, 62433), (1365, 50541), (1547, 44595), (1785, 38649), (1989, 34685), (2973, 23205), (3315, 20811), (4095, 16847), (4641, 14865), (4955, 13923), (5355, 12883), (6937, 9945), (7735, 8919)]