5136640

素因数分解:

$2^8\times 5^1\times {\mathrm{4013}}^1$

素因数の和:4034

約数の個数: 36

約数和(自身を含む): 12306924

約数和(自身を除く): 7170284

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 4013, 8026, 16052, 20065, 32104, 40130, 64208, 80260, 128416, 160520, 256832, 321040, 513664, 642080, 1027328, 1284160, 2568320, 5136640]

約数ペア:

[(1, 5136640), (2, 2568320), (4, 1284160), (5, 1027328), (8, 642080), (10, 513664), (16, 321040), (20, 256832), (32, 160520), (40, 128416), (64, 80260), (80, 64208), (128, 40130), (160, 32104), (256, 20065), (320, 16052), (640, 8026), (1280, 4013)]