8880640

素因数分解:

$2^9\times 5^1\times {\mathrm{3469}}^1$

素因数の和:3492

約数の個数: 40

約数和(自身を含む): 21298860

約数和(自身を除く): 12418220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 3469, 6938, 13876, 17345, 27752, 34690, 55504, 69380, 111008, 138760, 222016, 277520, 444032, 555040, 888064, 1110080, 1776128, 2220160, 4440320, 8880640]

約数ペア:

[(1, 8880640), (2, 4440320), (4, 2220160), (5, 1776128), (8, 1110080), (10, 888064), (16, 555040), (20, 444032), (32, 277520), (40, 222016), (64, 138760), (80, 111008), (128, 69380), (160, 55504), (256, 34690), (320, 27752), (512, 17345), (640, 13876), (1280, 6938), (2560, 3469)]