20450836

素因数分解:

$2^2\times 7^2\times {\mathrm{151}}^1\times {\mathrm{691}}^1$

素因数の和:860

約数の個数: 36

約数和(自身を含む): 41968416

約数和(自身を除く): 21517580

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 151, 196, 302, 604, 691, 1057, 1382, 2114, 2764, 4228, 4837, 7399, 9674, 14798, 19348, 29596, 33859, 67718, 104341, 135436, 208682, 417364, 730387, 1460774, 2921548, 5112709, 10225418, 20450836]

約数ペア:

[(1, 20450836), (2, 10225418), (4, 5112709), (7, 2921548), (14, 1460774), (28, 730387), (49, 417364), (98, 208682), (151, 135436), (196, 104341), (302, 67718), (604, 33859), (691, 29596), (1057, 19348), (1382, 14798), (2114, 9674), (2764, 7399), (4228, 4837)]