280053340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2000381}}^1$

素因数の和:2000397

約数の個数: 24

約数和(自身を含む): 672128352

約数和(自身を除く): 392075012

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2000381, 4000762, 8001524, 10001905, 14002667, 20003810, 28005334, 40007620, 56010668, 70013335, 140026670, 280053340]

約数ペア:

[(1, 280053340), (2, 140026670), (4, 70013335), (5, 56010668), (7, 40007620), (10, 28005334), (14, 20003810), (20, 14002667), (28, 10001905), (35, 8001524), (70, 4000762), (140, 2000381)]