20675150

素因数分解:

$2^1\times 5^2\times {\mathrm{197}}^1\times {\mathrm{2099}}^1$

素因数の和:2308

約数の個数: 24

約数和(自身を含む): 38669400

約数和(自身を除く): 17994250

約数列:

[1, 2, 5, 10, 25, 50, 197, 394, 985, 1970, 2099, 4198, 4925, 9850, 10495, 20990, 52475, 104950, 413503, 827006, 2067515, 4135030, 10337575, 20675150]

約数ペア:

[(1, 20675150), (2, 10337575), (5, 4135030), (10, 2067515), (25, 827006), (50, 413503), (197, 104950), (394, 52475), (985, 20990), (1970, 10495), (2099, 9850), (4198, 4925)]