20666850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{4751}}^1$

素因数の和:4795

約数の個数: 48

約数和(自身を含む): 53032320

約数和(自身を除く): 32365470

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 29, 30, 50, 58, 75, 87, 145, 150, 174, 290, 435, 725, 870, 1450, 2175, 4350, 4751, 9502, 14253, 23755, 28506, 47510, 71265, 118775, 137779, 142530, 237550, 275558, 356325, 413337, 688895, 712650, 826674, 1377790, 2066685, 3444475, 4133370, 6888950, 10333425, 20666850]

約数ペア:

[(1, 20666850), (2, 10333425), (3, 6888950), (5, 4133370), (6, 3444475), (10, 2066685), (15, 1377790), (25, 826674), (29, 712650), (30, 688895), (50, 413337), (58, 356325), (75, 275558), (87, 237550), (145, 142530), (150, 137779), (174, 118775), (290, 71265), (435, 47510), (725, 28506), (870, 23755), (1450, 14253), (2175, 9502), (4350, 4751)]