40968320

素因数分解:

$2^7\times 5^1\times {\mathrm{64013}}^1$

素因数の和:64032

約数の個数: 32

約数和(自身を含む): 97941420

約数和(自身を除く): 56973100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 64013, 128026, 256052, 320065, 512104, 640130, 1024208, 1280260, 2048416, 2560520, 4096832, 5121040, 8193664, 10242080, 20484160, 40968320]

約数ペア:

[(1, 40968320), (2, 20484160), (4, 10242080), (5, 8193664), (8, 5121040), (10, 4096832), (16, 2560520), (20, 2048416), (32, 1280260), (40, 1024208), (64, 640130), (80, 512104), (128, 320065), (160, 256052), (320, 128026), (640, 64013)]