20983220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{55219}}^1$

素因数の和:55247

約数の個数: 24

約数和(自身を含む): 46384800

約数和(自身を除く): 25401580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 55219, 110438, 220876, 276095, 552190, 1049161, 1104380, 2098322, 4196644, 5245805, 10491610, 20983220]

約数ペア:

[(1, 20983220), (2, 10491610), (4, 5245805), (5, 4196644), (10, 2098322), (19, 1104380), (20, 1049161), (38, 552190), (76, 276095), (95, 220876), (190, 110438), (380, 55219)]