2105840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2393}}^1$

素因数の和:2417

約数の個数: 40

約数和(自身を含む): 5343408

約数和(自身を除く): 3237568

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 2393, 4786, 9572, 11965, 19144, 23930, 26323, 38288, 47860, 52646, 95720, 105292, 131615, 191440, 210584, 263230, 421168, 526460, 1052920, 2105840]

約数ペア:

[(1, 2105840), (2, 1052920), (4, 526460), (5, 421168), (8, 263230), (10, 210584), (11, 191440), (16, 131615), (20, 105292), (22, 95720), (40, 52646), (44, 47860), (55, 38288), (80, 26323), (88, 23930), (110, 19144), (176, 11965), (220, 9572), (440, 4786), (880, 2393)]