201778423

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{61}}^1$

素因数の和:141

約数の個数: 72

約数和(自身を含む): 290834064

約数和(自身を除く): 89055641

約数列:

[1, 7, 11, 17, 19, 49, 61, 77, 119, 133, 187, 209, 323, 361, 427, 539, 671, 833, 931, 1037, 1159, 1309, 1463, 2261, 2527, 2989, 3553, 3971, 4697, 6137, 7259, 8113, 9163, 10241, 11407, 12749, 15827, 17689, 19703, 22021, 24871, 27797, 32879, 42959, 50813, 56791, 67507, 79849, 89243, 137921, 154147, 174097, 194579, 216733, 242231, 300713, 374357, 472549, 558943, 624701, 965447, 1079029, 1517131, 1695617, 2620499, 3307843, 4117927, 10619917, 11869319, 18343493, 28825489, 201778423]

約数ペア:

[(1, 201778423), (7, 28825489), (11, 18343493), (17, 11869319), (19, 10619917), (49, 4117927), (61, 3307843), (77, 2620499), (119, 1695617), (133, 1517131), (187, 1079029), (209, 965447), (323, 624701), (361, 558943), (427, 472549), (539, 374357), (671, 300713), (833, 242231), (931, 216733), (1037, 194579), (1159, 174097), (1309, 154147), (1463, 137921), (2261, 89243), (2527, 79849), (2989, 67507), (3553, 56791), (3971, 50813), (4697, 42959), (6137, 32879), (7259, 27797), (8113, 24871), (9163, 22021), (10241, 19703), (11407, 17689), (12749, 15827)]