20111680

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3697}}^1$

素因数の和:3731

約数の個数: 56

約数和(自身を含む): 50721768

約数和(自身を除く): 30610088

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 320, 340, 544, 680, 1088, 1360, 2720, 3697, 5440, 7394, 14788, 18485, 29576, 36970, 59152, 62849, 73940, 118304, 125698, 147880, 236608, 251396, 295760, 314245, 502792, 591520, 628490, 1005584, 1183040, 1256980, 2011168, 2513960, 4022336, 5027920, 10055840, 20111680]

約数ペア:

[(1, 20111680), (2, 10055840), (4, 5027920), (5, 4022336), (8, 2513960), (10, 2011168), (16, 1256980), (17, 1183040), (20, 1005584), (32, 628490), (34, 591520), (40, 502792), (64, 314245), (68, 295760), (80, 251396), (85, 236608), (136, 147880), (160, 125698), (170, 118304), (272, 73940), (320, 62849), (340, 59152), (544, 36970), (680, 29576), (1088, 18485), (1360, 14788), (2720, 7394), (3697, 5440)]