20809902028

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1\times {\mathrm{10321}}^1$

素因数の和:10690

約数の個数: 48

約数和(自身を含む): 39017160000

約数和(自身を除く): 18207257972

約数列:

[1, 2, 4, 17, 34, 68, 149, 199, 298, 398, 596, 796, 2533, 3383, 5066, 6766, 10132, 10321, 13532, 20642, 29651, 41284, 59302, 118604, 175457, 350914, 504067, 701828, 1008134, 1537829, 2016268, 2053879, 3075658, 4107758, 6151316, 8215516, 26143093, 34915943, 52286186, 69831886, 104572372, 139663772, 306027971, 612055942, 1224111884, 5202475507, 10404951014, 20809902028]

約数ペア:

[(1, 20809902028), (2, 10404951014), (4, 5202475507), (17, 1224111884), (34, 612055942), (68, 306027971), (149, 139663772), (199, 104572372), (298, 69831886), (398, 52286186), (596, 34915943), (796, 26143093), (2533, 8215516), (3383, 6151316), (5066, 4107758), (6766, 3075658), (10132, 2053879), (10321, 2016268), (13532, 1537829), (20642, 1008134), (29651, 701828), (41284, 504067), (59302, 350914), (118604, 175457)]