41680

素因数分解:

$2^4\times 5^1\times {\mathrm{521}}^1$

素因数の和:534

約数の個数: 20

約数和(自身を含む): 97092

約数和(自身を除く): 55412

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 521, 1042, 2084, 2605, 4168, 5210, 8336, 10420, 20840, 41680]

約数ペア:

[(1, 41680), (2, 20840), (4, 10420), (5, 8336), (8, 5210), (10, 4168), (16, 2605), (20, 2084), (40, 1042), (80, 521)]