81115375

素因数分解:

$5^3\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:241

約数の個数: 48

約数和(自身を含む): 115524864

約数和(自身を除く): 34409489

約数列:

[1, 5, 11, 25, 31, 55, 121, 125, 155, 173, 275, 341, 605, 775, 865, 1375, 1705, 1903, 3025, 3751, 3875, 4325, 5363, 8525, 9515, 15125, 18755, 20933, 21625, 26815, 42625, 47575, 58993, 93775, 104665, 134075, 237875, 294965, 468875, 523325, 648923, 670375, 1474825, 2616625, 3244615, 7374125, 16223075, 81115375]

約数ペア:

[(1, 81115375), (5, 16223075), (11, 7374125), (25, 3244615), (31, 2616625), (55, 1474825), (121, 670375), (125, 648923), (155, 523325), (173, 468875), (275, 294965), (341, 237875), (605, 134075), (775, 104665), (865, 93775), (1375, 58993), (1705, 47575), (1903, 42625), (3025, 26815), (3751, 21625), (3875, 20933), (4325, 18755), (5363, 15125), (8525, 9515)]