277920891

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{691}}^1$

素因数の和:816

約数の個数: 48

約数和(自身を含む): 440444160

約数和(自身を除く): 162523269

約数列:

[1, 3, 9, 23, 29, 67, 69, 87, 201, 207, 261, 603, 667, 691, 1541, 1943, 2001, 2073, 4623, 5829, 6003, 6219, 13869, 15893, 17487, 20039, 44689, 46297, 47679, 60117, 134067, 138891, 143037, 180351, 402201, 416673, 460897, 1064831, 1342613, 1382691, 3194493, 4027839, 4148073, 9583479, 12083517, 30880099, 92640297, 277920891]

約数ペア:

[(1, 277920891), (3, 92640297), (9, 30880099), (23, 12083517), (29, 9583479), (67, 4148073), (69, 4027839), (87, 3194493), (201, 1382691), (207, 1342613), (261, 1064831), (603, 460897), (667, 416673), (691, 402201), (1541, 180351), (1943, 143037), (2001, 138891), (2073, 134067), (4623, 60117), (5829, 47679), (6003, 46297), (6219, 44689), (13869, 20039), (15893, 17487)]