20355335

素因数分解:

$5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1$

素因数の和:133

約数の個数: 64

約数和(自身を含む): 33868800

約数和(自身を除く): 13513465

約数列:

[1, 5, 7, 11, 13, 35, 49, 55, 65, 77, 83, 91, 143, 245, 343, 385, 415, 455, 539, 581, 637, 715, 913, 1001, 1079, 1715, 2695, 2905, 3185, 3773, 4067, 4459, 4565, 5005, 5395, 6391, 7007, 7553, 11869, 18865, 20335, 22295, 28469, 31955, 35035, 37765, 44737, 49049, 52871, 59345, 83083, 142345, 223685, 245245, 264355, 313159, 370097, 415415, 581581, 1565795, 1850485, 2907905, 4071067, 20355335]

約数ペア:

[(1, 20355335), (5, 4071067), (7, 2907905), (11, 1850485), (13, 1565795), (35, 581581), (49, 415415), (55, 370097), (65, 313159), (77, 264355), (83, 245245), (91, 223685), (143, 142345), (245, 83083), (343, 59345), (385, 52871), (415, 49049), (455, 44737), (539, 37765), (581, 35035), (637, 31955), (715, 28469), (913, 22295), (1001, 20335), (1079, 18865), (1715, 11869), (2695, 7553), (2905, 7007), (3185, 6391), (3773, 5395), (4067, 5005), (4459, 4565)]