5121040

素因数分解:

$2^4\times 5^1\times {\mathrm{64013}}^1$

素因数の和:64026

約数の個数: 20

約数和(自身を含む): 11906604

約数和(自身を除く): 6785564

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 64013, 128026, 256052, 320065, 512104, 640130, 1024208, 1280260, 2560520, 5121040]

約数ペア:

[(1, 5121040), (2, 2560520), (4, 1280260), (5, 1024208), (8, 640130), (10, 512104), (16, 320065), (20, 256052), (40, 128026), (80, 64013)]