205157060

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{2713}}^1$

素因数の和:2940

約数の個数: 48

約数和(自身を含む): 455952000

約数和(自身を除く): 250794940

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 199, 380, 398, 796, 995, 1990, 2713, 3781, 3980, 5426, 7562, 10852, 13565, 15124, 18905, 27130, 37810, 51547, 54260, 75620, 103094, 206188, 257735, 515470, 539887, 1030940, 1079774, 2159548, 2699435, 5398870, 10257853, 10797740, 20515706, 41031412, 51289265, 102578530, 205157060]

約数ペア:

[(1, 205157060), (2, 102578530), (4, 51289265), (5, 41031412), (10, 20515706), (19, 10797740), (20, 10257853), (38, 5398870), (76, 2699435), (95, 2159548), (190, 1079774), (199, 1030940), (380, 539887), (398, 515470), (796, 257735), (995, 206188), (1990, 103094), (2713, 75620), (3781, 54260), (3980, 51547), (5426, 37810), (7562, 27130), (10852, 18905), (13565, 15124)]