2907905

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1$

素因数の和:126

約数の個数: 48

約数和(自身を含む): 4826304

約数和(自身を除く): 1918399

約数列:

[1, 5, 7, 11, 13, 35, 49, 55, 65, 77, 83, 91, 143, 245, 385, 415, 455, 539, 581, 637, 715, 913, 1001, 1079, 2695, 2905, 3185, 4067, 4565, 5005, 5395, 6391, 7007, 7553, 11869, 20335, 31955, 35035, 37765, 44737, 52871, 59345, 83083, 223685, 264355, 415415, 581581, 2907905]

約数ペア:

[(1, 2907905), (5, 581581), (7, 415415), (11, 264355), (13, 223685), (35, 83083), (49, 59345), (55, 52871), (65, 44737), (77, 37765), (83, 35035), (91, 31955), (143, 20335), (245, 11869), (385, 7553), (415, 7007), (455, 6391), (539, 5395), (581, 5005), (637, 4565), (715, 4067), (913, 3185), (1001, 2905), (1079, 2695)]