64020800

素因数分解:

$2^6\times 5^2\times {\mathrm{40013}}^1$

素因数の和:40035

約数の個数: 42

約数和(自身を含む): 157535118

約数和(自身を除く): 93514318

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 40013, 80026, 160052, 200065, 320104, 400130, 640208, 800260, 1000325, 1280416, 1600520, 2000650, 2560832, 3201040, 4001300, 6402080, 8002600, 12804160, 16005200, 32010400, 64020800]

約数ペア:

[(1, 64020800), (2, 32010400), (4, 16005200), (5, 12804160), (8, 8002600), (10, 6402080), (16, 4001300), (20, 3201040), (25, 2560832), (32, 2000650), (40, 1600520), (50, 1280416), (64, 1000325), (80, 800260), (100, 640208), (160, 400130), (200, 320104), (320, 200065), (400, 160052), (800, 80026), (1600, 40013)]