20090515

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{3329}}^1$

素因数の和:3422

約数の個数: 16

約数和(自身を含む): 25894080

約数和(自身を除く): 5803565

約数列:

[1, 5, 17, 71, 85, 355, 1207, 3329, 6035, 16645, 56593, 236359, 282965, 1181795, 4018103, 20090515]

約数ペア:

[(1, 20090515), (5, 4018103), (17, 1181795), (71, 282965), (85, 236359), (355, 56593), (1207, 16645), (3329, 6035)]