20756850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{1949}}^1$

素因数の和:2035

約数の個数: 48

約数和(自身を含む): 52228800

約数和(自身を除く): 31471950

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 71, 75, 142, 150, 213, 355, 426, 710, 1065, 1775, 1949, 2130, 3550, 3898, 5325, 5847, 9745, 10650, 11694, 19490, 29235, 48725, 58470, 97450, 138379, 146175, 276758, 292350, 415137, 691895, 830274, 1383790, 2075685, 3459475, 4151370, 6918950, 10378425, 20756850]

約数ペア:

[(1, 20756850), (2, 10378425), (3, 6918950), (5, 4151370), (6, 3459475), (10, 2075685), (15, 1383790), (25, 830274), (30, 691895), (50, 415137), (71, 292350), (75, 276758), (142, 146175), (150, 138379), (213, 97450), (355, 58470), (426, 48725), (710, 29235), (1065, 19490), (1775, 11694), (1949, 10650), (2130, 9745), (3550, 5847), (3898, 5325)]