20800395

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:87

約数の個数: 160

約数和(自身を含む): 50181120

約数和(自身を除く): 29380725

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 23, 27, 29, 33, 35, 45, 55, 63, 69, 77, 81, 87, 99, 105, 115, 135, 145, 161, 165, 189, 203, 207, 231, 253, 261, 297, 315, 319, 345, 385, 405, 435, 483, 495, 567, 609, 621, 667, 693, 759, 783, 805, 891, 945, 957, 1015, 1035, 1155, 1265, 1305, 1449, 1485, 1595, 1771, 1827, 1863, 2001, 2079, 2233, 2277, 2349, 2415, 2835, 2871, 3045, 3105, 3335, 3465, 3795, 3915, 4347, 4455, 4669, 4785, 5313, 5481, 6003, 6237, 6699, 6831, 7245, 7337, 8613, 8855, 9135, 9315, 10005, 10395, 11165, 11385, 11745, 13041, 14007, 14355, 15939, 16443, 18009, 20097, 20493, 21735, 22011, 23345, 25839, 26565, 27405, 30015, 31185, 33495, 34155, 36685, 42021, 43065, 47817, 51359, 54027, 60291, 65205, 66033, 70035, 79695, 82215, 90045, 100485, 102465, 110055, 126063, 129195, 143451, 154077, 180873, 198099, 210105, 239085, 256795, 270135, 301455, 330165, 378189, 462231, 594297, 630315, 717255, 770385, 904365, 990495, 1386693, 1890945, 2311155, 2971485, 4160079, 6933465, 20800395]

約数ペア:

[(1, 20800395), (3, 6933465), (5, 4160079), (7, 2971485), (9, 2311155), (11, 1890945), (15, 1386693), (21, 990495), (23, 904365), (27, 770385), (29, 717255), (33, 630315), (35, 594297), (45, 462231), (55, 378189), (63, 330165), (69, 301455), (77, 270135), (81, 256795), (87, 239085), (99, 210105), (105, 198099), (115, 180873), (135, 154077), (145, 143451), (161, 129195), (165, 126063), (189, 110055), (203, 102465), (207, 100485), (231, 90045), (253, 82215), (261, 79695), (297, 70035), (315, 66033), (319, 65205), (345, 60291), (385, 54027), (405, 51359), (435, 47817), (483, 43065), (495, 42021), (567, 36685), (609, 34155), (621, 33495), (667, 31185), (693, 30015), (759, 27405), (783, 26565), (805, 25839), (891, 23345), (945, 22011), (957, 21735), (1015, 20493), (1035, 20097), (1155, 18009), (1265, 16443), (1305, 15939), (1449, 14355), (1485, 14007), (1595, 13041), (1771, 11745), (1827, 11385), (1863, 11165), (2001, 10395), (2079, 10005), (2233, 9315), (2277, 9135), (2349, 8855), (2415, 8613), (2835, 7337), (2871, 7245), (3045, 6831), (3105, 6699), (3335, 6237), (3465, 6003), (3795, 5481), (3915, 5313), (4347, 4785), (4455, 4669)]