1638375

素因数分解:

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

素因数の和:292

約数の個数: 32

約数和(自身を含む): 2897856

約数和(自身を除く): 1259481

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 125, 255, 257, 375, 425, 771, 1275, 1285, 2125, 3855, 4369, 6375, 6425, 13107, 19275, 21845, 32125, 65535, 96375, 109225, 327675, 546125, 1638375]

約数ペア:

[(1, 1638375), (3, 546125), (5, 327675), (15, 109225), (17, 96375), (25, 65535), (51, 32125), (75, 21845), (85, 19275), (125, 13107), (255, 6425), (257, 6375), (375, 4369), (425, 3855), (771, 2125), (1275, 1285)]