13290215

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{199}}^1$

素因数の和:279

約数の個数: 24

約数和(自身を含む): 17373600

約数和(自身を除く): 4083385

約数列:

[1, 5, 19, 37, 95, 185, 199, 361, 703, 995, 1805, 3515, 3781, 7363, 13357, 18905, 36815, 66785, 71839, 139897, 359195, 699485, 2658043, 13290215]

約数ペア:

[(1, 13290215), (5, 2658043), (19, 699485), (37, 359195), (95, 139897), (185, 71839), (199, 66785), (361, 36815), (703, 18905), (995, 13357), (1805, 7363), (3515, 3781)]