20793220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7817}}^1$

素因数の和:7852

約数の個数: 48

約数和(自身を含む): 52536960

約数和(自身を除く): 31743740

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, 7817, 15634, 31268, 39085, 54719, 78170, 109438, 148523, 156340, 218876, 273595, 297046, 547190, 594092, 742615, 1039661, 1094380, 1485230, 2079322, 2970460, 4158644, 5198305, 10396610, 20793220]

約数ペア:

[(1, 20793220), (2, 10396610), (4, 5198305), (5, 4158644), (7, 2970460), (10, 2079322), (14, 1485230), (19, 1094380), (20, 1039661), (28, 742615), (35, 594092), (38, 547190), (70, 297046), (76, 273595), (95, 218876), (133, 156340), (140, 148523), (190, 109438), (266, 78170), (380, 54719), (532, 39085), (665, 31268), (1330, 15634), (2660, 7817)]