19514740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19913}}^1$

素因数の和:19936

約数の個数: 36

約数和(自身を含む): 47674116

約数和(自身を除く): 28159376

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 19913, 39826, 79652, 99565, 139391, 199130, 278782, 398260, 557564, 696955, 975737, 1393910, 1951474, 2787820, 3902948, 4878685, 9757370, 19514740]

約数ペア:

[(1, 19514740), (2, 9757370), (4, 4878685), (5, 3902948), (7, 2787820), (10, 1951474), (14, 1393910), (20, 975737), (28, 696955), (35, 557564), (49, 398260), (70, 278782), (98, 199130), (140, 139391), (196, 99565), (245, 79652), (490, 39826), (980, 19913)]