20191685

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{1063}}^1$

素因数の和:1228

約数の個数: 16

約数和(自身を含む): 25280640

約数和(自身を除く): 5088955

約数列:

[1, 5, 29, 131, 145, 655, 1063, 3799, 5315, 18995, 30827, 139253, 154135, 696265, 4038337, 20191685]

約数ペア:

[(1, 20191685), (5, 4038337), (29, 696265), (131, 154135), (145, 139253), (655, 30827), (1063, 18995), (3799, 5315)]