142745855

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:240

約数の個数: 64

約数和(自身を含む): 218972160

約数和(自身を除く): 76226305

約数列:

[1, 5, 7, 17, 31, 35, 71, 85, 109, 119, 155, 217, 355, 497, 527, 545, 595, 763, 1085, 1207, 1853, 2201, 2485, 2635, 3379, 3689, 3815, 6035, 7739, 8449, 9265, 11005, 12971, 15407, 16895, 18445, 23653, 37417, 38695, 42245, 54173, 57443, 64855, 77035, 118265, 131563, 187085, 239909, 261919, 270865, 287215, 402101, 657815, 920941, 1199545, 1309595, 1679363, 2010505, 4078453, 4604705, 8396815, 20392265, 28549171, 142745855]

約数ペア:

[(1, 142745855), (5, 28549171), (7, 20392265), (17, 8396815), (31, 4604705), (35, 4078453), (71, 2010505), (85, 1679363), (109, 1309595), (119, 1199545), (155, 920941), (217, 657815), (355, 402101), (497, 287215), (527, 270865), (545, 261919), (595, 239909), (763, 187085), (1085, 131563), (1207, 118265), (1853, 77035), (2201, 64855), (2485, 57443), (2635, 54173), (3379, 42245), (3689, 38695), (3815, 37417), (6035, 23653), (7739, 18445), (8449, 16895), (9265, 15407), (11005, 12971)]