661440147260

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{21011}}^1\times {\mathrm{54277}}^1$

素因数の和:75326

約数の個数: 48

約数和(自身を含む): 1437016563360

約数和(自身を除く): 775576416100

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 21011, 42022, 54277, 84044, 105055, 108554, 210110, 217108, 271385, 420220, 542770, 609319, 1085540, 1218638, 1574033, 2437276, 3046595, 3148066, 6093190, 6296132, 7870165, 12186380, 15740330, 31480660, 1140414047, 2280828094, 4561656188, 5702070235, 11404140470, 22808280940, 33072007363, 66144014726, 132288029452, 165360036815, 330720073630, 661440147260]

約数ペア:

[(1, 661440147260), (2, 330720073630), (4, 165360036815), (5, 132288029452), (10, 66144014726), (20, 33072007363), (29, 22808280940), (58, 11404140470), (116, 5702070235), (145, 4561656188), (290, 2280828094), (580, 1140414047), (21011, 31480660), (42022, 15740330), (54277, 12186380), (84044, 7870165), (105055, 6296132), (108554, 6093190), (210110, 3148066), (217108, 3046595), (271385, 2437276), (420220, 1574033), (542770, 1218638), (609319, 1085540)]