6401600

素因数分解:

$2^6\times 5^2\times {\mathrm{4001}}^1$

素因数の和:4023

約数の個数: 42

約数和(自身を含む): 15755874

約数和(自身を除く): 9354274

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 4001, 8002, 16004, 20005, 32008, 40010, 64016, 80020, 100025, 128032, 160040, 200050, 256064, 320080, 400100, 640160, 800200, 1280320, 1600400, 3200800, 6401600]

約数ペア:

[(1, 6401600), (2, 3200800), (4, 1600400), (5, 1280320), (8, 800200), (10, 640160), (16, 400100), (20, 320080), (25, 256064), (32, 200050), (40, 160040), (50, 128032), (64, 100025), (80, 80020), (100, 64016), (160, 40010), (200, 32008), (320, 20005), (400, 16004), (800, 8002), (1600, 4001)]