1606400

素因数分解:

$2^8\times 5^2\times {\mathrm{251}}^1$

素因数の和:277

約数の個数: 54

約数和(自身を含む): 3991932

約数和(自身を除く): 2385532

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 251, 256, 320, 400, 502, 640, 800, 1004, 1255, 1280, 1600, 2008, 2510, 3200, 4016, 5020, 6275, 6400, 8032, 10040, 12550, 16064, 20080, 25100, 32128, 40160, 50200, 64256, 80320, 100400, 160640, 200800, 321280, 401600, 803200, 1606400]

約数ペア:

[(1, 1606400), (2, 803200), (4, 401600), (5, 321280), (8, 200800), (10, 160640), (16, 100400), (20, 80320), (25, 64256), (32, 50200), (40, 40160), (50, 32128), (64, 25100), (80, 20080), (100, 16064), (128, 12550), (160, 10040), (200, 8032), (251, 6400), (256, 6275), (320, 5020), (400, 4016), (502, 3200), (640, 2510), (800, 2008), (1004, 1600), (1255, 1280)]