20481545

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{439}}^1$

素因数の和:525

約数の個数: 32

約数和(自身を含む): 29736960

約数和(自身を除く): 9255415

約数列:

[1, 5, 7, 31, 35, 43, 155, 215, 217, 301, 439, 1085, 1333, 1505, 2195, 3073, 6665, 9331, 13609, 15365, 18877, 46655, 68045, 94385, 95263, 132139, 476315, 585187, 660695, 2925935, 4096309, 20481545]

約数ペア:

[(1, 20481545), (5, 4096309), (7, 2925935), (31, 660695), (35, 585187), (43, 476315), (155, 132139), (215, 95263), (217, 94385), (301, 68045), (439, 46655), (1085, 18877), (1333, 15365), (1505, 13609), (2195, 9331), (3073, 6665)]