18898795265

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{571}}^1\times {\mathrm{701}}^1$

素因数の和:1374

約数の個数: 64

約数和(自身を含む): 27754721280

約数和(自身を除く): 8855926015

約数列:

[1, 5, 7, 19, 35, 71, 95, 133, 355, 497, 571, 665, 701, 1349, 2485, 2855, 3505, 3997, 4907, 6745, 9443, 10849, 13319, 19985, 24535, 40541, 47215, 49771, 54245, 66595, 75943, 93233, 202705, 248855, 283787, 348397, 379715, 400271, 466165, 770279, 945649, 1418935, 1741985, 2001355, 2801897, 3851395, 4728245, 5391953, 6619543, 7605149, 14009485, 26959765, 28419241, 33097715, 38025745, 53236043, 142096205, 198934687, 266180215, 539965579, 994673435, 2699827895, 3779759053, 18898795265]

約数ペア:

[(1, 18898795265), (5, 3779759053), (7, 2699827895), (19, 994673435), (35, 539965579), (71, 266180215), (95, 198934687), (133, 142096205), (355, 53236043), (497, 38025745), (571, 33097715), (665, 28419241), (701, 26959765), (1349, 14009485), (2485, 7605149), (2855, 6619543), (3505, 5391953), (3997, 4728245), (4907, 3851395), (6745, 2801897), (9443, 2001355), (10849, 1741985), (13319, 1418935), (19985, 945649), (24535, 770279), (40541, 466165), (47215, 400271), (49771, 379715), (54245, 348397), (66595, 283787), (75943, 248855), (93233, 202705)]