271778375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:249

約数の個数: 64

約数和(自身を含む): 397163520

約数和(自身を除く): 125385145

約数列:

[1, 5, 11, 19, 25, 55, 95, 101, 103, 125, 209, 275, 475, 505, 515, 1045, 1111, 1133, 1375, 1919, 1957, 2375, 2525, 2575, 5225, 5555, 5665, 9595, 9785, 10403, 12625, 12875, 21109, 21527, 26125, 27775, 28325, 47975, 48925, 52015, 105545, 107635, 114433, 138875, 141625, 197657, 239875, 244625, 260075, 527725, 538175, 572165, 988285, 1300375, 2174227, 2638625, 2690875, 2860825, 4941425, 10871135, 14304125, 24707125, 54355675, 271778375]

約数ペア:

[(1, 271778375), (5, 54355675), (11, 24707125), (19, 14304125), (25, 10871135), (55, 4941425), (95, 2860825), (101, 2690875), (103, 2638625), (125, 2174227), (209, 1300375), (275, 988285), (475, 572165), (505, 538175), (515, 527725), (1045, 260075), (1111, 244625), (1133, 239875), (1375, 197657), (1919, 141625), (1957, 138875), (2375, 114433), (2525, 107635), (2575, 105545), (5225, 52015), (5555, 48925), (5665, 47975), (9595, 28325), (9785, 27775), (10403, 26125), (12625, 21527), (12875, 21109)]