1831280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2081}}^1$

素因数の和:2105

約数の個数: 40

約数和(自身を含む): 4647024

約数和(自身を除く): 2815744

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 2081, 4162, 8324, 10405, 16648, 20810, 22891, 33296, 41620, 45782, 83240, 91564, 114455, 166480, 183128, 228910, 366256, 457820, 915640, 1831280]

約数ペア:

[(1, 1831280), (2, 915640), (4, 457820), (5, 366256), (8, 228910), (10, 183128), (11, 166480), (16, 114455), (20, 91564), (22, 83240), (40, 45782), (44, 41620), (55, 33296), (80, 22891), (88, 20810), (110, 16648), (176, 10405), (220, 8324), (440, 4162), (880, 2081)]