31492880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20719}}^1$

素因数の和:20751

約数の個数: 40

約数和(自身を含む): 77078400

約数和(自身を除く): 45585520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 20719, 41438, 82876, 103595, 165752, 207190, 331504, 393661, 414380, 787322, 828760, 1574644, 1657520, 1968305, 3149288, 3936610, 6298576, 7873220, 15746440, 31492880]

約数ペア:

[(1, 31492880), (2, 15746440), (4, 7873220), (5, 6298576), (8, 3936610), (10, 3149288), (16, 1968305), (19, 1657520), (20, 1574644), (38, 828760), (40, 787322), (76, 414380), (80, 393661), (95, 331504), (152, 207190), (190, 165752), (304, 103595), (380, 82876), (760, 41438), (1520, 20719)]