1297905

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1$

素因数の和:325

約数の個数: 32

約数和(自身を含む): 2433024

約数和(自身を除く): 1135119

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 105, 141, 235, 263, 329, 705, 789, 987, 1315, 1645, 1841, 3945, 4935, 5523, 9205, 12361, 27615, 37083, 61805, 86527, 185415, 259581, 432635, 1297905]

約数ペア:

[(1, 1297905), (3, 432635), (5, 259581), (7, 185415), (15, 86527), (21, 61805), (35, 37083), (47, 27615), (105, 12361), (141, 9205), (235, 5523), (263, 4935), (329, 3945), (705, 1841), (789, 1645), (987, 1315)]