25416580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2557}}^1$

素因数の和:2644

約数の個数: 48

約数和(自身を含む): 61883136

約数和(自身を除く): 36466556

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 2557, 4970, 5114, 9940, 10228, 12785, 17899, 25570, 35798, 51140, 71596, 89495, 178990, 181547, 357980, 363094, 726188, 907735, 1270829, 1815470, 2541658, 3630940, 5083316, 6354145, 12708290, 25416580]

約数ペア:

[(1, 25416580), (2, 12708290), (4, 6354145), (5, 5083316), (7, 3630940), (10, 2541658), (14, 1815470), (20, 1270829), (28, 907735), (35, 726188), (70, 363094), (71, 357980), (140, 181547), (142, 178990), (284, 89495), (355, 71596), (497, 51140), (710, 35798), (994, 25570), (1420, 17899), (1988, 12785), (2485, 10228), (2557, 9940), (4970, 5114)]