20527220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7717}}^1$

素因数の和:7752

約数の個数: 48

約数和(自身を含む): 51864960

約数和(自身を除く): 31337740

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 7717, 15434, 30868, 38585, 54019, 77170, 108038, 146623, 154340, 216076, 270095, 293246, 540190, 586492, 733115, 1026361, 1080380, 1466230, 2052722, 2932460, 4105444, 5131805, 10263610, 20527220]

約数ペア:

[(1, 20527220), (2, 10263610), (4, 5131805), (5, 4105444), (7, 2932460), (10, 2052722), (14, 1466230), (19, 1080380), (20, 1026361), (28, 733115), (35, 586492), (38, 540190), (70, 293246), (76, 270095), (95, 216076), (133, 154340), (140, 146623), (190, 108038), (266, 77170), (380, 54019), (532, 38585), (665, 30868), (1330, 15434), (2660, 7717)]