81591876

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{647}}^1$

素因数の和:801

約数の個数: 72

約数和(自身を含む): 215115264

約数和(自身を除く): 133523388

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 113, 124, 186, 226, 279, 339, 372, 452, 558, 647, 678, 1017, 1116, 1294, 1356, 1941, 2034, 2588, 3503, 3882, 4068, 5823, 7006, 7764, 10509, 11646, 14012, 20057, 21018, 23292, 31527, 40114, 42036, 60171, 63054, 73111, 80228, 120342, 126108, 146222, 180513, 219333, 240684, 292444, 361026, 438666, 657999, 722052, 877332, 1315998, 2266441, 2631996, 4532882, 6799323, 9065764, 13598646, 20397969, 27197292, 40795938, 81591876]

約数ペア:

[(1, 81591876), (2, 40795938), (3, 27197292), (4, 20397969), (6, 13598646), (9, 9065764), (12, 6799323), (18, 4532882), (31, 2631996), (36, 2266441), (62, 1315998), (93, 877332), (113, 722052), (124, 657999), (186, 438666), (226, 361026), (279, 292444), (339, 240684), (372, 219333), (452, 180513), (558, 146222), (647, 126108), (678, 120342), (1017, 80228), (1116, 73111), (1294, 63054), (1356, 60171), (1941, 42036), (2034, 40114), (2588, 31527), (3503, 23292), (3882, 21018), (4068, 20057), (5823, 14012), (7006, 11646), (7764, 10509)]