40375780

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{18521}}^1$

素因数の和:18639

約数の個数: 24

約数和(自身を含む): 85571640

約数和(自身を除く): 45195860

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 18521, 37042, 74084, 92605, 185210, 370420, 2018789, 4037578, 8075156, 10093945, 20187890, 40375780]

約数ペア:

[(1, 40375780), (2, 20187890), (4, 10093945), (5, 8075156), (10, 4037578), (20, 2018789), (109, 370420), (218, 185210), (436, 92605), (545, 74084), (1090, 37042), (2180, 18521)]