987321335

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{28181}}^1$

素因数の和:28224

約数の個数: 48

約数和(自身を含む): 1619224992

約数和(自身を除く): 631903657

約数列:

[1, 5, 7, 11, 13, 35, 49, 55, 65, 77, 91, 143, 245, 385, 455, 539, 637, 715, 1001, 2695, 3185, 5005, 7007, 28181, 35035, 140905, 197267, 309991, 366353, 986335, 1380869, 1549955, 1831765, 2169937, 2564471, 4029883, 6904345, 10849685, 12822355, 15189559, 17951297, 20149415, 28209181, 75947795, 89756485, 141045905, 197464267, 987321335]

約数ペア:

[(1, 987321335), (5, 197464267), (7, 141045905), (11, 89756485), (13, 75947795), (35, 28209181), (49, 20149415), (55, 17951297), (65, 15189559), (77, 12822355), (91, 10849685), (143, 6904345), (245, 4029883), (385, 2564471), (455, 2169937), (539, 1831765), (637, 1549955), (715, 1380869), (1001, 986335), (2695, 366353), (3185, 309991), (5005, 197267), (7007, 140905), (28181, 35035)]