31129125

素因数分解:

$3^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1$

素因数の和:311

約数の個数: 64

約数和(自身を含む): 57957120

約数和(自身を除く): 26827995

約数列:

[1, 3, 5, 15, 17, 19, 25, 51, 57, 75, 85, 95, 125, 255, 257, 285, 323, 375, 425, 475, 771, 969, 1275, 1285, 1425, 1615, 2125, 2375, 3855, 4369, 4845, 4883, 6375, 6425, 7125, 8075, 13107, 14649, 19275, 21845, 24225, 24415, 32125, 40375, 65535, 73245, 83011, 96375, 109225, 121125, 122075, 249033, 327675, 366225, 415055, 546125, 610375, 1245165, 1638375, 1831125, 2075275, 6225825, 10376375, 31129125]

約数ペア:

[(1, 31129125), (3, 10376375), (5, 6225825), (15, 2075275), (17, 1831125), (19, 1638375), (25, 1245165), (51, 610375), (57, 546125), (75, 415055), (85, 366225), (95, 327675), (125, 249033), (255, 122075), (257, 121125), (285, 109225), (323, 96375), (375, 83011), (425, 73245), (475, 65535), (771, 40375), (969, 32125), (1275, 24415), (1285, 24225), (1425, 21845), (1615, 19275), (2125, 14649), (2375, 13107), (3855, 8075), (4369, 7125), (4845, 6425), (4883, 6375)]