28085085

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{271}}^1$

素因数の和:343

約数の個数: 72

約数和(自身を含む): 58046976

約数和(自身を除く): 29961891

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 47, 49, 63, 105, 141, 147, 235, 245, 271, 315, 329, 423, 441, 705, 735, 813, 987, 1355, 1645, 1897, 2115, 2205, 2303, 2439, 2961, 4065, 4935, 5691, 6909, 9485, 11515, 12195, 12737, 13279, 14805, 17073, 20727, 28455, 34545, 38211, 39837, 63685, 66395, 85365, 89159, 103635, 114633, 119511, 191055, 199185, 267477, 445795, 573165, 597555, 624113, 802431, 1337385, 1872339, 3120565, 4012155, 5617017, 9361695, 28085085]

約数ペア:

[(1, 28085085), (3, 9361695), (5, 5617017), (7, 4012155), (9, 3120565), (15, 1872339), (21, 1337385), (35, 802431), (45, 624113), (47, 597555), (49, 573165), (63, 445795), (105, 267477), (141, 199185), (147, 191055), (235, 119511), (245, 114633), (271, 103635), (315, 89159), (329, 85365), (423, 66395), (441, 63685), (705, 39837), (735, 38211), (813, 34545), (987, 28455), (1355, 20727), (1645, 17073), (1897, 14805), (2115, 13279), (2205, 12737), (2303, 12195), (2439, 11515), (2961, 9485), (4065, 6909), (4935, 5691)]