155543375

素因数分解:

$5^3\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{199}}^1$

素因数の和:277

約数の個数: 48

約数和(自身を含む): 216964800

約数和(自身を除く): 61421425

約数列:

[1, 5, 13, 25, 37, 65, 125, 169, 185, 199, 325, 481, 845, 925, 995, 1625, 2405, 2587, 4225, 4625, 4975, 6253, 7363, 12025, 12935, 21125, 24875, 31265, 33631, 36815, 60125, 64675, 95719, 156325, 168155, 184075, 323375, 478595, 781625, 840775, 920375, 1244347, 2392975, 4203875, 6221735, 11964875, 31108675, 155543375]

約数ペア:

[(1, 155543375), (5, 31108675), (13, 11964875), (25, 6221735), (37, 4203875), (65, 2392975), (125, 1244347), (169, 920375), (185, 840775), (199, 781625), (325, 478595), (481, 323375), (845, 184075), (925, 168155), (995, 156325), (1625, 95719), (2405, 64675), (2587, 60125), (4225, 36815), (4625, 33631), (4975, 31265), (6253, 24875), (7363, 21125), (12025, 12935)]