660302080

素因数分解:

$2^8\times 5^1\times {\mathrm{515861}}^1$

素因数の和:515882

約数の個数: 36

約数和(自身を含む): 1581632892

約数和(自身を除く): 921330812

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 515861, 1031722, 2063444, 2579305, 4126888, 5158610, 8253776, 10317220, 16507552, 20634440, 33015104, 41268880, 66030208, 82537760, 132060416, 165075520, 330151040, 660302080]

約数ペア:

[(1, 660302080), (2, 330151040), (4, 165075520), (5, 132060416), (8, 82537760), (10, 66030208), (16, 41268880), (20, 33015104), (32, 20634440), (40, 16507552), (64, 10317220), (80, 8253776), (128, 5158610), (160, 4126888), (256, 2579305), (320, 2063444), (640, 1031722), (1280, 515861)]