40320261

素因数分解:

$3^6\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:149

約数の個数: 56

約数和(自身を含む): 66104640

約数和(自身を除く): 25784379

約数列:

[1, 3, 9, 19, 27, 41, 57, 71, 81, 123, 171, 213, 243, 369, 513, 639, 729, 779, 1107, 1349, 1539, 1917, 2337, 2911, 3321, 4047, 4617, 5751, 7011, 8733, 9963, 12141, 13851, 17253, 21033, 26199, 29889, 36423, 51759, 55309, 63099, 78597, 109269, 165927, 189297, 235791, 327807, 497781, 567891, 707373, 983421, 1493343, 2122119, 4480029, 13440087, 40320261]

約数ペア:

[(1, 40320261), (3, 13440087), (9, 4480029), (19, 2122119), (27, 1493343), (41, 983421), (57, 707373), (71, 567891), (81, 497781), (123, 327807), (171, 235791), (213, 189297), (243, 165927), (369, 109269), (513, 78597), (639, 63099), (729, 55309), (779, 51759), (1107, 36423), (1349, 29889), (1539, 26199), (1917, 21033), (2337, 17253), (2911, 13851), (3321, 12141), (4047, 9963), (4617, 8733), (5751, 7011)]