208515188

素因数分解:

$2^2\times 7^3\times {\mathrm{379}}^1\times {\mathrm{401}}^1$

素因数の和:805

約数の個数: 48

約数和(自身を含む): 427728000

約数和(自身を除く): 219212812

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 379, 401, 686, 758, 802, 1372, 1516, 1604, 2653, 2807, 5306, 5614, 10612, 11228, 18571, 19649, 37142, 39298, 74284, 78596, 129997, 137543, 151979, 259994, 275086, 303958, 519988, 550172, 607916, 1063853, 2127706, 4255412, 7446971, 14893942, 29787884, 52128797, 104257594, 208515188]

約数ペア:

[(1, 208515188), (2, 104257594), (4, 52128797), (7, 29787884), (14, 14893942), (28, 7446971), (49, 4255412), (98, 2127706), (196, 1063853), (343, 607916), (379, 550172), (401, 519988), (686, 303958), (758, 275086), (802, 259994), (1372, 151979), (1516, 137543), (1604, 129997), (2653, 78596), (2807, 74284), (5306, 39298), (5614, 37142), (10612, 19649), (11228, 18571)]