2220800

素因数分解:

$2^8\times 5^2\times {\mathrm{347}}^1$

素因数の和:373

約数の個数: 54

約数和(自身を含む): 5512668

約数和(自身を除く): 3291868

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 347, 400, 640, 694, 800, 1280, 1388, 1600, 1735, 2776, 3200, 3470, 5552, 6400, 6940, 8675, 11104, 13880, 17350, 22208, 27760, 34700, 44416, 55520, 69400, 88832, 111040, 138800, 222080, 277600, 444160, 555200, 1110400, 2220800]

約数ペア:

[(1, 2220800), (2, 1110400), (4, 555200), (5, 444160), (8, 277600), (10, 222080), (16, 138800), (20, 111040), (25, 88832), (32, 69400), (40, 55520), (50, 44416), (64, 34700), (80, 27760), (100, 22208), (128, 17350), (160, 13880), (200, 11104), (256, 8675), (320, 6940), (347, 6400), (400, 5552), (640, 3470), (694, 3200), (800, 2776), (1280, 1735), (1388, 1600)]