201917180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{5261}}^1$

素因数の和:5390

約数の個数: 48

約数和(自身を含む): 450848160

約数和(自身を除く): 248930980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 101, 190, 202, 380, 404, 505, 1010, 1919, 2020, 3838, 5261, 7676, 9595, 10522, 19190, 21044, 26305, 38380, 52610, 99959, 105220, 199918, 399836, 499795, 531361, 999590, 1062722, 1999180, 2125444, 2656805, 5313610, 10095859, 10627220, 20191718, 40383436, 50479295, 100958590, 201917180]

約数ペア:

[(1, 201917180), (2, 100958590), (4, 50479295), (5, 40383436), (10, 20191718), (19, 10627220), (20, 10095859), (38, 5313610), (76, 2656805), (95, 2125444), (101, 1999180), (190, 1062722), (202, 999590), (380, 531361), (404, 499795), (505, 399836), (1010, 199918), (1919, 105220), (2020, 99959), (3838, 52610), (5261, 38380), (7676, 26305), (9595, 21044), (10522, 19190)]