19764850

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{379}}^1$

素因数の和:547

約数の個数: 48

約数和(自身を含む): 42408000

約数和(自身を除く): 22643150

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 149, 175, 298, 350, 379, 745, 758, 1043, 1490, 1895, 2086, 2653, 3725, 3790, 5215, 5306, 7450, 9475, 10430, 13265, 18950, 26075, 26530, 52150, 56471, 66325, 112942, 132650, 282355, 395297, 564710, 790594, 1411775, 1976485, 2823550, 3952970, 9882425, 19764850]

約数ペア:

[(1, 19764850), (2, 9882425), (5, 3952970), (7, 2823550), (10, 1976485), (14, 1411775), (25, 790594), (35, 564710), (50, 395297), (70, 282355), (149, 132650), (175, 112942), (298, 66325), (350, 56471), (379, 52150), (745, 26530), (758, 26075), (1043, 18950), (1490, 13265), (1895, 10430), (2086, 9475), (2653, 7450), (3725, 5306), (3790, 5215)]