205320460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1\times {\mathrm{1361}}^1$

素因数の和:1786

約数の個数: 48

約数和(自身を含む): 455343840

約数和(自身を除く): 250023380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 397, 794, 1361, 1588, 1985, 2722, 3970, 5444, 6805, 7543, 7940, 13610, 15086, 25859, 27220, 30172, 37715, 51718, 75430, 103436, 129295, 150860, 258590, 517180, 540317, 1080634, 2161268, 2701585, 5403170, 10266023, 10806340, 20532046, 41064092, 51330115, 102660230, 205320460]

約数ペア:

[(1, 205320460), (2, 102660230), (4, 51330115), (5, 41064092), (10, 20532046), (19, 10806340), (20, 10266023), (38, 5403170), (76, 2701585), (95, 2161268), (190, 1080634), (380, 540317), (397, 517180), (794, 258590), (1361, 150860), (1588, 129295), (1985, 103436), (2722, 75430), (3970, 51718), (5444, 37715), (6805, 30172), (7543, 27220), (7940, 25859), (13610, 15086)]