20754400

素因数分解:

$2^5\times 5^2\times {\mathrm{25943}}^1$

素因数の和:25963

約数の個数: 36

約数和(自身を含む): 50668632

約数和(自身を除く): 29914232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 25943, 51886, 103772, 129715, 207544, 259430, 415088, 518860, 648575, 830176, 1037720, 1297150, 2075440, 2594300, 4150880, 5188600, 10377200, 20754400]

約数ペア:

[(1, 20754400), (2, 10377200), (4, 5188600), (5, 4150880), (8, 2594300), (10, 2075440), (16, 1297150), (20, 1037720), (25, 830176), (32, 648575), (40, 518860), (50, 415088), (80, 259430), (100, 207544), (160, 129715), (200, 103772), (400, 51886), (800, 25943)]