19696640

素因数分解:

$2^{10}\times 5^1\times {\mathrm{3847}}^1$

素因数の和:3872

約数の個数: 44

約数和(自身を含む): 47261136

約数和(自身を除く): 27564496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 3847, 5120, 7694, 15388, 19235, 30776, 38470, 61552, 76940, 123104, 153880, 246208, 307760, 492416, 615520, 984832, 1231040, 1969664, 2462080, 3939328, 4924160, 9848320, 19696640]

約数ペア:

[(1, 19696640), (2, 9848320), (4, 4924160), (5, 3939328), (8, 2462080), (10, 1969664), (16, 1231040), (20, 984832), (32, 615520), (40, 492416), (64, 307760), (80, 246208), (128, 153880), (160, 123104), (256, 76940), (320, 61552), (512, 38470), (640, 30776), (1024, 19235), (1280, 15388), (2560, 7694), (3847, 5120)]