1608996879

素因数分解:

$3^4\times 7^3\times {\mathrm{29}}^1\times {\mathrm{1997}}^1$

素因数の和:2059

約数の個数: 80

約数和(自身を含む): 2901096000

約数和(自身を除く): 1292099121

約数列:

[1, 3, 7, 9, 21, 27, 29, 49, 63, 81, 87, 147, 189, 203, 261, 343, 441, 567, 609, 783, 1029, 1323, 1421, 1827, 1997, 2349, 3087, 3969, 4263, 5481, 5991, 9261, 9947, 12789, 13979, 16443, 17973, 27783, 29841, 38367, 41937, 53919, 57913, 89523, 97853, 115101, 125811, 161757, 173739, 268569, 293559, 377433, 405391, 521217, 684971, 805707, 880677, 1132299, 1216173, 1563651, 2054913, 2642031, 2837737, 3648519, 4690953, 6164739, 7926093, 8513211, 10945557, 18494217, 19864159, 25539633, 32836671, 55482651, 59592477, 76618899, 178777431, 229856697, 536332293, 1608996879]

約数ペア:

[(1, 1608996879), (3, 536332293), (7, 229856697), (9, 178777431), (21, 76618899), (27, 59592477), (29, 55482651), (49, 32836671), (63, 25539633), (81, 19864159), (87, 18494217), (147, 10945557), (189, 8513211), (203, 7926093), (261, 6164739), (343, 4690953), (441, 3648519), (567, 2837737), (609, 2642031), (783, 2054913), (1029, 1563651), (1323, 1216173), (1421, 1132299), (1827, 880677), (1997, 805707), (2349, 684971), (3087, 521217), (3969, 405391), (4263, 377433), (5481, 293559), (5991, 268569), (9261, 173739), (9947, 161757), (12789, 125811), (13979, 115101), (16443, 97853), (17973, 89523), (27783, 57913), (29841, 53919), (38367, 41937)]