209214740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1494391}}^1$

素因数の和:1494407

約数の個数: 24

約数和(自身を含む): 502115712

約数和(自身を除く): 292900972

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1494391, 2988782, 5977564, 7471955, 10460737, 14943910, 20921474, 29887820, 41842948, 52303685, 104607370, 209214740]

約数ペア:

[(1, 209214740), (2, 104607370), (4, 52303685), (5, 41842948), (7, 29887820), (10, 20921474), (14, 14943910), (20, 10460737), (28, 7471955), (35, 5977564), (70, 2988782), (140, 1494391)]