77968640

素因数分解:

$2^8\times 5^1\times {\mathrm{60913}}^1$

素因数の和:60934

約数の個数: 36

約数和(自身を含む): 186762324

約数和(自身を除く): 108793684

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 60913, 121826, 243652, 304565, 487304, 609130, 974608, 1218260, 1949216, 2436520, 3898432, 4873040, 7796864, 9746080, 15593728, 19492160, 38984320, 77968640]

約数ペア:

[(1, 77968640), (2, 38984320), (4, 19492160), (5, 15593728), (8, 9746080), (10, 7796864), (16, 4873040), (20, 3898432), (32, 2436520), (40, 1949216), (64, 1218260), (80, 974608), (128, 609130), (160, 487304), (256, 304565), (320, 243652), (640, 121826), (1280, 60913)]