20769950

素因数分解:

$2^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:261

約数の個数: 48

約数和(自身を含む): 40428960

約数和(自身を除く): 19659010

約数列:

[1, 2, 5, 10, 25, 37, 50, 74, 103, 109, 185, 206, 218, 370, 515, 545, 925, 1030, 1090, 1850, 2575, 2725, 3811, 4033, 5150, 5450, 7622, 8066, 11227, 19055, 20165, 22454, 38110, 40330, 56135, 95275, 100825, 112270, 190550, 201650, 280675, 415399, 561350, 830798, 2076995, 4153990, 10384975, 20769950]

約数ペア:

[(1, 20769950), (2, 10384975), (5, 4153990), (10, 2076995), (25, 830798), (37, 561350), (50, 415399), (74, 280675), (103, 201650), (109, 190550), (185, 112270), (206, 100825), (218, 95275), (370, 56135), (515, 40330), (545, 38110), (925, 22454), (1030, 20165), (1090, 19055), (1850, 11227), (2575, 8066), (2725, 7622), (3811, 5450), (4033, 5150)]