19401340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{138581}}^1$

素因数の和:138597

約数の個数: 24

約数和(自身を含む): 46563552

約数和(自身を除く): 27162212

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 138581, 277162, 554324, 692905, 970067, 1385810, 1940134, 2771620, 3880268, 4850335, 9700670, 19401340]

約数ペア:

[(1, 19401340), (2, 9700670), (4, 4850335), (5, 3880268), (7, 2771620), (10, 1940134), (14, 1385810), (20, 970067), (28, 692905), (35, 554324), (70, 277162), (140, 138581)]