401680

素因数分解:

$2^4\times 5^1\times {\mathrm{5021}}^1$

素因数の和:5034

約数の個数: 20

約数和(自身を含む): 934092

約数和(自身を除く): 532412

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 5021, 10042, 20084, 25105, 40168, 50210, 80336, 100420, 200840, 401680]

約数ペア:

[(1, 401680), (2, 200840), (4, 100420), (5, 80336), (8, 50210), (10, 40168), (16, 25105), (20, 20084), (40, 10042), (80, 5021)]