28528420

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{3593}}^1$

素因数の和:3999

約数の個数: 24

約数和(自身を含む): 60077304

約数和(自身を除く): 31548884

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 1588, 1985, 3593, 3970, 7186, 7940, 14372, 17965, 35930, 71860, 1426421, 2852842, 5705684, 7132105, 14264210, 28528420]

約数ペア:

[(1, 28528420), (2, 14264210), (4, 7132105), (5, 5705684), (10, 2852842), (20, 1426421), (397, 71860), (794, 35930), (1588, 17965), (1985, 14372), (3593, 7940), (3970, 7186)]