205909585

素因数分解:

$5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:214

約数の個数: 64

約数和(自身を含む): 306561024

約数和(自身を除く): 100651439

約数列:

[1, 5, 7, 35, 41, 43, 47, 71, 205, 215, 235, 287, 301, 329, 355, 497, 1435, 1505, 1645, 1763, 1927, 2021, 2485, 2911, 3053, 3337, 8815, 9635, 10105, 12341, 13489, 14147, 14555, 15265, 16685, 20377, 21371, 23359, 61705, 67445, 70735, 82861, 101885, 106855, 116795, 125173, 136817, 143491, 414305, 580027, 625865, 684085, 717455, 876211, 957719, 1004437, 2900135, 4381055, 4788595, 5022185, 5883131, 29415655, 41181917, 205909585]

約数ペア:

[(1, 205909585), (5, 41181917), (7, 29415655), (35, 5883131), (41, 5022185), (43, 4788595), (47, 4381055), (71, 2900135), (205, 1004437), (215, 957719), (235, 876211), (287, 717455), (301, 684085), (329, 625865), (355, 580027), (497, 414305), (1435, 143491), (1505, 136817), (1645, 125173), (1763, 116795), (1927, 106855), (2021, 101885), (2485, 82861), (2911, 70735), (3053, 67445), (3337, 61705), (8815, 23359), (9635, 21371), (10105, 20377), (12341, 16685), (13489, 15265), (14147, 14555)]