20484160

素因数分解:

$2^6\times 5^1\times {\mathrm{64013}}^1$

素因数の和:64030

約数の個数: 28

約数和(自身を含む): 48778668

約数和(自身を除く): 28294508

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 64013, 128026, 256052, 320065, 512104, 640130, 1024208, 1280260, 2048416, 2560520, 4096832, 5121040, 10242080, 20484160]

約数ペア:

[(1, 20484160), (2, 10242080), (4, 5121040), (5, 4096832), (8, 2560520), (10, 2048416), (16, 1280260), (20, 1024208), (32, 640130), (40, 512104), (64, 320065), (80, 256052), (160, 128026), (320, 64013)]