255666175

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 343728000

約数和(自身を除く): 88061825

約数列:

[1, 5, 25, 29, 43, 59, 139, 145, 215, 295, 695, 725, 1075, 1247, 1475, 1711, 2537, 3475, 4031, 5977, 6235, 8201, 8555, 12685, 20155, 29885, 31175, 41005, 42775, 63425, 73573, 100775, 149425, 173333, 205025, 237829, 352643, 367865, 866665, 1189145, 1763215, 1839325, 4333325, 5945725, 8816075, 10226647, 51133235, 255666175]

約数ペア:

[(1, 255666175), (5, 51133235), (25, 10226647), (29, 8816075), (43, 5945725), (59, 4333325), (139, 1839325), (145, 1763215), (215, 1189145), (295, 866665), (695, 367865), (725, 352643), (1075, 237829), (1247, 205025), (1475, 173333), (1711, 149425), (2537, 100775), (3475, 73573), (4031, 63425), (5977, 42775), (6235, 41005), (8201, 31175), (8555, 29885), (12685, 20155)]