20864960

素因数分解:

$2^6\times 5^1\times {\mathrm{65203}}^1$

素因数の和:65220

約数の個数: 28

約数和(自身を含む): 49685448

約数和(自身を除く): 28820488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 65203, 130406, 260812, 326015, 521624, 652030, 1043248, 1304060, 2086496, 2608120, 4172992, 5216240, 10432480, 20864960]

約数ペア:

[(1, 20864960), (2, 10432480), (4, 5216240), (5, 4172992), (8, 2608120), (10, 2086496), (16, 1304060), (20, 1043248), (32, 652030), (40, 521624), (64, 326015), (80, 260812), (160, 130406), (320, 65203)]