1815680

素因数分解:

$2^7\times 5^1\times {\mathrm{2837}}^1$

素因数の和:2856

約数の個数: 32

約数和(自身を含む): 4342140

約数和(自身を除く): 2526460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 2837, 5674, 11348, 14185, 22696, 28370, 45392, 56740, 90784, 113480, 181568, 226960, 363136, 453920, 907840, 1815680]

約数ペア:

[(1, 1815680), (2, 907840), (4, 453920), (5, 363136), (8, 226960), (10, 181568), (16, 113480), (20, 90784), (32, 56740), (40, 45392), (64, 28370), (80, 22696), (128, 14185), (160, 11348), (320, 5674), (640, 2837)]