210972020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1506943}}^1$

素因数の和:1506959

約数の個数: 24

約数和(自身を含む): 506333184

約数和(自身を除く): 295361164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1506943, 3013886, 6027772, 7534715, 10548601, 15069430, 21097202, 30138860, 42194404, 52743005, 105486010, 210972020]

約数ペア:

[(1, 210972020), (2, 105486010), (4, 52743005), (5, 42194404), (7, 30138860), (10, 21097202), (14, 15069430), (20, 10548601), (28, 7534715), (35, 6027772), (70, 3013886), (140, 1506943)]