81397036

素因数分解:

$2^2\times 7^2\times {\mathrm{601}}^1\times {\mathrm{691}}^1$

素因数の和:1310

約数の個数: 36

約数和(自身を含む): 166217016

約数和(自身を除く): 84819980

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 601, 691, 1202, 1382, 2404, 2764, 4207, 4837, 8414, 9674, 16828, 19348, 29449, 33859, 58898, 67718, 117796, 135436, 415291, 830582, 1661164, 2907037, 5814074, 11628148, 20349259, 40698518, 81397036]

約数ペア:

[(1, 81397036), (2, 40698518), (4, 20349259), (7, 11628148), (14, 5814074), (28, 2907037), (49, 1661164), (98, 830582), (196, 415291), (601, 135436), (691, 117796), (1202, 67718), (1382, 58898), (2404, 33859), (2764, 29449), (4207, 19348), (4837, 16828), (8414, 9674)]