19952450

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{523}}^1$

素因数の和:651

約数の個数: 48

約数和(自身を含む): 42884160

約数和(自身を除く): 22931710

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 109, 175, 218, 350, 523, 545, 763, 1046, 1090, 1526, 2615, 2725, 3661, 3815, 5230, 5450, 7322, 7630, 13075, 18305, 19075, 26150, 36610, 38150, 57007, 91525, 114014, 183050, 285035, 399049, 570070, 798098, 1425175, 1995245, 2850350, 3990490, 9976225, 19952450]

約数ペア:

[(1, 19952450), (2, 9976225), (5, 3990490), (7, 2850350), (10, 1995245), (14, 1425175), (25, 798098), (35, 570070), (50, 399049), (70, 285035), (109, 183050), (175, 114014), (218, 91525), (350, 57007), (523, 38150), (545, 36610), (763, 26150), (1046, 19075), (1090, 18305), (1526, 13075), (2615, 7630), (2725, 7322), (3661, 5450), (3815, 5230)]