205145919

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{991}}^1$

素因数の和:1069

約数の個数: 64

約数和(自身を含む): 359976960

約数和(自身を除く): 154831041

約数列:

[1, 3, 9, 11, 17, 27, 33, 41, 51, 99, 123, 153, 187, 297, 369, 451, 459, 561, 697, 991, 1107, 1353, 1683, 2091, 2973, 4059, 5049, 6273, 7667, 8919, 10901, 12177, 16847, 18819, 23001, 26757, 32703, 40631, 50541, 69003, 98109, 121893, 151623, 185317, 207009, 294327, 365679, 446941, 454869, 555951, 690727, 1097037, 1340823, 1667853, 2072181, 4022469, 5003559, 6216543, 7597997, 12067407, 18649629, 22793991, 68381973, 205145919]

約数ペア:

[(1, 205145919), (3, 68381973), (9, 22793991), (11, 18649629), (17, 12067407), (27, 7597997), (33, 6216543), (41, 5003559), (51, 4022469), (99, 2072181), (123, 1667853), (153, 1340823), (187, 1097037), (297, 690727), (369, 555951), (451, 454869), (459, 446941), (561, 365679), (697, 294327), (991, 207009), (1107, 185317), (1353, 151623), (1683, 121893), (2091, 98109), (2973, 69003), (4059, 50541), (5049, 40631), (6273, 32703), (7667, 26757), (8919, 23001), (10901, 18819), (12177, 16847)]