81721224

素因数分解:

$2^3\times 3^4\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:229

約数の個数: 160

約数和(自身を含む): 251559000

約数和(自身を除く): 169837776

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 52, 54, 72, 78, 81, 89, 104, 108, 109, 117, 156, 162, 178, 216, 218, 234, 267, 312, 324, 327, 351, 356, 436, 468, 534, 648, 654, 702, 712, 801, 872, 936, 981, 1053, 1068, 1157, 1308, 1404, 1417, 1602, 1962, 2106, 2136, 2314, 2403, 2616, 2808, 2834, 2943, 3204, 3471, 3924, 4212, 4251, 4628, 4806, 5668, 5886, 6408, 6942, 7209, 7848, 8424, 8502, 8829, 9256, 9612, 9701, 10413, 11336, 11772, 12753, 13884, 14418, 17004, 17658, 19224, 19402, 20826, 23544, 25506, 27768, 28836, 29103, 31239, 34008, 35316, 38259, 38804, 41652, 51012, 57672, 58206, 62478, 70632, 76518, 77608, 83304, 87309, 93717, 102024, 114777, 116412, 124956, 126113, 153036, 174618, 187434, 229554, 232824, 249912, 252226, 261927, 306072, 349236, 374868, 378339, 459108, 504452, 523854, 698472, 749736, 756678, 785781, 918216, 1008904, 1047708, 1135017, 1513356, 1571562, 2095416, 2270034, 3026712, 3143124, 3405051, 4540068, 6286248, 6810102, 9080136, 10215153, 13620204, 20430306, 27240408, 40860612, 81721224]

約数ペア:

[(1, 81721224), (2, 40860612), (3, 27240408), (4, 20430306), (6, 13620204), (8, 10215153), (9, 9080136), (12, 6810102), (13, 6286248), (18, 4540068), (24, 3405051), (26, 3143124), (27, 3026712), (36, 2270034), (39, 2095416), (52, 1571562), (54, 1513356), (72, 1135017), (78, 1047708), (81, 1008904), (89, 918216), (104, 785781), (108, 756678), (109, 749736), (117, 698472), (156, 523854), (162, 504452), (178, 459108), (216, 378339), (218, 374868), (234, 349236), (267, 306072), (312, 261927), (324, 252226), (327, 249912), (351, 232824), (356, 229554), (436, 187434), (468, 174618), (534, 153036), (648, 126113), (654, 124956), (702, 116412), (712, 114777), (801, 102024), (872, 93717), (936, 87309), (981, 83304), (1053, 77608), (1068, 76518), (1157, 70632), (1308, 62478), (1404, 58206), (1417, 57672), (1602, 51012), (1962, 41652), (2106, 38804), (2136, 38259), (2314, 35316), (2403, 34008), (2616, 31239), (2808, 29103), (2834, 28836), (2943, 27768), (3204, 25506), (3471, 23544), (3924, 20826), (4212, 19402), (4251, 19224), (4628, 17658), (4806, 17004), (5668, 14418), (5886, 13884), (6408, 12753), (6942, 11772), (7209, 11336), (7848, 10413), (8424, 9701), (8502, 9612), (8829, 9256)]