20561700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{68539}}^1$

素因数の和:68556

約数の個数: 36

約数和(自身を含む): 59492720

約数和(自身を除く): 38931020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 300, 68539, 137078, 205617, 274156, 342695, 411234, 685390, 822468, 1028085, 1370780, 1713475, 2056170, 3426950, 4112340, 5140425, 6853900, 10280850, 20561700]

約数ペア:

[(1, 20561700), (2, 10280850), (3, 6853900), (4, 5140425), (5, 4112340), (6, 3426950), (10, 2056170), (12, 1713475), (15, 1370780), (20, 1028085), (25, 822468), (30, 685390), (50, 411234), (60, 342695), (75, 274156), (100, 205617), (150, 137078), (300, 68539)]