19767220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{4729}}^1$

素因数の和:4768

約数の個数: 48

約数和(自身を含む): 47678400

約数和(自身を除く): 27911180

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 4729, 9458, 18916, 23645, 47290, 52019, 89851, 94580, 104038, 179702, 208076, 260095, 359404, 449255, 520190, 898510, 988361, 1040380, 1797020, 1976722, 3953444, 4941805, 9883610, 19767220]

約数ペア:

[(1, 19767220), (2, 9883610), (4, 4941805), (5, 3953444), (10, 1976722), (11, 1797020), (19, 1040380), (20, 988361), (22, 898510), (38, 520190), (44, 449255), (55, 359404), (76, 260095), (95, 208076), (110, 179702), (190, 104038), (209, 94580), (220, 89851), (380, 52019), (418, 47290), (836, 23645), (1045, 18916), (2090, 9458), (4180, 4729)]