20906276545

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^3\times {\mathrm{61}}^1\times {\mathrm{1051}}^1$

素因数の和:1164

約数の個数: 96

約数和(自身を含む): 32656874112

約数和(自身を除く): 11750597567

約数列:

[1, 5, 7, 11, 35, 49, 55, 61, 77, 121, 245, 305, 385, 427, 539, 605, 671, 847, 1051, 1331, 2135, 2695, 2989, 3355, 4235, 4697, 5255, 5929, 6655, 7357, 7381, 9317, 11561, 14945, 23485, 29645, 32879, 36785, 36905, 46585, 51499, 51667, 57805, 64111, 65219, 80927, 81191, 127171, 164395, 257495, 258335, 320555, 326095, 361669, 404635, 405955, 448777, 566489, 568337, 635855, 705221, 890197, 1398881, 1808345, 2243885, 2832445, 2841685, 3141439, 3526105, 3978359, 4450985, 4936547, 6231379, 6994405, 7757431, 9792167, 15707195, 19891795, 24682735, 31156895, 34555829, 38787155, 48960835, 54302017, 68545169, 85331741, 172779145, 271510085, 342725845, 380114119, 426658705, 597322187, 1900570595, 2986610935, 4181255309, 20906276545]

約数ペア:

[(1, 20906276545), (5, 4181255309), (7, 2986610935), (11, 1900570595), (35, 597322187), (49, 426658705), (55, 380114119), (61, 342725845), (77, 271510085), (121, 172779145), (245, 85331741), (305, 68545169), (385, 54302017), (427, 48960835), (539, 38787155), (605, 34555829), (671, 31156895), (847, 24682735), (1051, 19891795), (1331, 15707195), (2135, 9792167), (2695, 7757431), (2989, 6994405), (3355, 6231379), (4235, 4936547), (4697, 4450985), (5255, 3978359), (5929, 3526105), (6655, 3141439), (7357, 2841685), (7381, 2832445), (9317, 2243885), (11561, 1808345), (14945, 1398881), (23485, 890197), (29645, 705221), (32879, 635855), (36785, 568337), (36905, 566489), (46585, 448777), (51499, 405955), (51667, 404635), (57805, 361669), (64111, 326095), (65219, 320555), (80927, 258335), (81191, 257495), (127171, 164395)]