19702850

素因数分解:

$2^1\times 5^2\times {\mathrm{389}}^1\times {\mathrm{1013}}^1$

素因数の和:1414

約数の個数: 24

約数和(自身を含む): 36777780

約数和(自身を除く): 17074930

約数列:

[1, 2, 5, 10, 25, 50, 389, 778, 1013, 1945, 2026, 3890, 5065, 9725, 10130, 19450, 25325, 50650, 394057, 788114, 1970285, 3940570, 9851425, 19702850]

約数ペア:

[(1, 19702850), (2, 9851425), (5, 3940570), (10, 1970285), (25, 788114), (50, 394057), (389, 50650), (778, 25325), (1013, 19450), (1945, 10130), (2026, 9725), (3890, 5065)]