1331840

素因数分解:

$2^7\times 5^1\times {\mathrm{2081}}^1$

素因数の和:2100

約数の個数: 32

約数和(自身を含む): 3185460

約数和(自身を除く): 1853620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 2081, 4162, 8324, 10405, 16648, 20810, 33296, 41620, 66592, 83240, 133184, 166480, 266368, 332960, 665920, 1331840]

約数ペア:

[(1, 1331840), (2, 665920), (4, 332960), (5, 266368), (8, 166480), (10, 133184), (16, 83240), (20, 66592), (32, 41620), (40, 33296), (64, 20810), (80, 16648), (128, 10405), (160, 8324), (320, 4162), (640, 2081)]