20781030

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{4649}}^1$

素因数の和:4808

約数の個数: 32

約数和(自身を含む): 50220000

約数和(自身を除く): 29438970

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 149, 298, 447, 745, 894, 1490, 2235, 4470, 4649, 9298, 13947, 23245, 27894, 46490, 69735, 139470, 692701, 1385402, 2078103, 3463505, 4156206, 6927010, 10390515, 20781030]

約数ペア:

[(1, 20781030), (2, 10390515), (3, 6927010), (5, 4156206), (6, 3463505), (10, 2078103), (15, 1385402), (30, 692701), (149, 139470), (298, 69735), (447, 46490), (745, 27894), (894, 23245), (1490, 13947), (2235, 9298), (4470, 4649)]