20494300

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{191}}^1$

素因数の和:271

約数の個数: 72

約数和(自身を含む): 47496960

約数和(自身を除く): 27002660

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 37, 50, 58, 74, 100, 116, 145, 148, 185, 191, 290, 370, 382, 580, 725, 740, 764, 925, 955, 1073, 1450, 1850, 1910, 2146, 2900, 3700, 3820, 4292, 4775, 5365, 5539, 7067, 9550, 10730, 11078, 14134, 19100, 21460, 22156, 26825, 27695, 28268, 35335, 53650, 55390, 70670, 107300, 110780, 138475, 141340, 176675, 204943, 276950, 353350, 409886, 553900, 706700, 819772, 1024715, 2049430, 4098860, 5123575, 10247150, 20494300]

約数ペア:

[(1, 20494300), (2, 10247150), (4, 5123575), (5, 4098860), (10, 2049430), (20, 1024715), (25, 819772), (29, 706700), (37, 553900), (50, 409886), (58, 353350), (74, 276950), (100, 204943), (116, 176675), (145, 141340), (148, 138475), (185, 110780), (191, 107300), (290, 70670), (370, 55390), (382, 53650), (580, 35335), (725, 28268), (740, 27695), (764, 26825), (925, 22156), (955, 21460), (1073, 19100), (1450, 14134), (1850, 11078), (1910, 10730), (2146, 9550), (2900, 7067), (3700, 5539), (3820, 5365), (4292, 4775)]