245171875

素因数分解:

$5^6\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1$

素因数の和:131

約数の個数: 56

約数和(自身を含む): 354370464

約数和(自身を除く): 109198589

約数列:

[1, 5, 13, 17, 25, 65, 71, 85, 125, 221, 325, 355, 425, 625, 923, 1105, 1207, 1625, 1775, 2125, 3125, 4615, 5525, 6035, 8125, 8875, 10625, 15625, 15691, 23075, 27625, 30175, 40625, 44375, 53125, 78455, 115375, 138125, 150875, 203125, 221875, 265625, 392275, 576875, 690625, 754375, 1109375, 1961375, 2884375, 3453125, 3771875, 9806875, 14421875, 18859375, 49034375, 245171875]

約数ペア:

[(1, 245171875), (5, 49034375), (13, 18859375), (17, 14421875), (25, 9806875), (65, 3771875), (71, 3453125), (85, 2884375), (125, 1961375), (221, 1109375), (325, 754375), (355, 690625), (425, 576875), (625, 392275), (923, 265625), (1105, 221875), (1207, 203125), (1625, 150875), (1775, 138125), (2125, 115375), (3125, 78455), (4615, 53125), (5525, 44375), (6035, 40625), (8125, 30175), (8875, 27625), (10625, 23075), (15625, 15691)]