138957145

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^2\times {\mathrm{547}}^1$

素因数の和:669

約数の個数: 24

約数和(自身を含む): 178104384

約数和(自身を除く): 39147239

約数列:

[1, 5, 23, 47, 115, 235, 547, 1081, 2209, 2735, 5405, 11045, 12581, 25709, 50807, 62905, 128545, 254035, 591307, 1208323, 2956535, 6041615, 27791429, 138957145]

約数ペア:

[(1, 138957145), (5, 27791429), (23, 6041615), (47, 2956535), (115, 1208323), (235, 591307), (547, 254035), (1081, 128545), (2209, 62905), (2735, 50807), (5405, 25709), (11045, 12581)]