87859820

素因数分解:

$2^2\times 5^1\times {\mathrm{2081}}^1\times {\mathrm{2111}}^1$

素因数の和:4201

約数の個数: 24

約数和(自身を含む): 184681728

約数和(自身を除く): 96821908

約数列:

[1, 2, 4, 5, 10, 20, 2081, 2111, 4162, 4222, 8324, 8444, 10405, 10555, 20810, 21110, 41620, 42220, 4392991, 8785982, 17571964, 21964955, 43929910, 87859820]

約数ペア:

[(1, 87859820), (2, 43929910), (4, 21964955), (5, 17571964), (10, 8785982), (20, 4392991), (2081, 42220), (2111, 41620), (4162, 21110), (4222, 20810), (8324, 10555), (8444, 10405)]