17740775

素因数分解:

$5^2\times {\mathrm{13}}^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:85

約数の個数: 48

約数和(自身を含む): 26560800

約数和(自身を除く): 8820025

約数列:

[1, 5, 13, 17, 19, 25, 65, 85, 95, 169, 221, 247, 323, 325, 425, 475, 845, 1105, 1235, 1615, 2197, 2873, 3211, 4199, 4225, 5525, 6175, 8075, 10985, 14365, 16055, 20995, 37349, 41743, 54587, 54925, 71825, 80275, 104975, 186745, 208715, 272935, 709631, 933725, 1043575, 1364675, 3548155, 17740775]

約数ペア:

[(1, 17740775), (5, 3548155), (13, 1364675), (17, 1043575), (19, 933725), (25, 709631), (65, 272935), (85, 208715), (95, 186745), (169, 104975), (221, 80275), (247, 71825), (323, 54925), (325, 54587), (425, 41743), (475, 37349), (845, 20995), (1105, 16055), (1235, 14365), (1615, 10985), (2197, 8075), (2873, 6175), (3211, 5525), (4199, 4225)]