51216640

素因数分解:

$2^8\times 5^1\times {\mathrm{40013}}^1$

素因数の和:40034

約数の個数: 36

約数和(自身を含む): 122682924

約数和(自身を除く): 71466284

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 40013, 80026, 160052, 200065, 320104, 400130, 640208, 800260, 1280416, 1600520, 2560832, 3201040, 5121664, 6402080, 10243328, 12804160, 25608320, 51216640]

約数ペア:

[(1, 51216640), (2, 25608320), (4, 12804160), (5, 10243328), (8, 6402080), (10, 5121664), (16, 3201040), (20, 2560832), (32, 1600520), (40, 1280416), (64, 800260), (80, 640208), (128, 400130), (160, 320104), (256, 200065), (320, 160052), (640, 80026), (1280, 40013)]