40897840

素因数分解:

$2^4\times 5^1\times {\mathrm{511223}}^1$

素因数の和:511236

約数の個数: 20

約数和(自身を含む): 95087664

約数和(自身を除く): 54189824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 511223, 1022446, 2044892, 2556115, 4089784, 5112230, 8179568, 10224460, 20448920, 40897840]

約数ペア:

[(1, 40897840), (2, 20448920), (4, 10224460), (5, 8179568), (8, 5112230), (10, 4089784), (16, 2556115), (20, 2044892), (40, 1022446), (80, 511223)]