55078540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:235

約数の個数: 96

約数和(自身を含む): 133358400

約数和(自身を除く): 78279860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 89, 97, 110, 116, 145, 178, 194, 220, 290, 319, 356, 388, 445, 485, 580, 638, 890, 970, 979, 1067, 1276, 1595, 1780, 1940, 1958, 2134, 2581, 2813, 3190, 3916, 4268, 4895, 5162, 5335, 5626, 6380, 8633, 9790, 10324, 10670, 11252, 12905, 14065, 17266, 19580, 21340, 25810, 28130, 28391, 30943, 34532, 43165, 51620, 56260, 56782, 61886, 86330, 94963, 113564, 123772, 141955, 154715, 172660, 189926, 250357, 283910, 309430, 379852, 474815, 500714, 567820, 618860, 949630, 1001428, 1251785, 1899260, 2503570, 2753927, 5007140, 5507854, 11015708, 13769635, 27539270, 55078540]

約数ペア:

[(1, 55078540), (2, 27539270), (4, 13769635), (5, 11015708), (10, 5507854), (11, 5007140), (20, 2753927), (22, 2503570), (29, 1899260), (44, 1251785), (55, 1001428), (58, 949630), (89, 618860), (97, 567820), (110, 500714), (116, 474815), (145, 379852), (178, 309430), (194, 283910), (220, 250357), (290, 189926), (319, 172660), (356, 154715), (388, 141955), (445, 123772), (485, 113564), (580, 94963), (638, 86330), (890, 61886), (970, 56782), (979, 56260), (1067, 51620), (1276, 43165), (1595, 34532), (1780, 30943), (1940, 28391), (1958, 28130), (2134, 25810), (2581, 21340), (2813, 19580), (3190, 17266), (3916, 14065), (4268, 12905), (4895, 11252), (5162, 10670), (5335, 10324), (5626, 9790), (6380, 8633)]