280875

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{107}}^1$

素因数の和:132

約数の個数: 32

約数和(自身を含む): 539136

約数和(自身を除く): 258261

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 107, 125, 175, 321, 375, 525, 535, 749, 875, 1605, 2247, 2625, 2675, 3745, 8025, 11235, 13375, 18725, 40125, 56175, 93625, 280875]

約数ペア:

[(1, 280875), (3, 93625), (5, 56175), (7, 40125), (15, 18725), (21, 13375), (25, 11235), (35, 8025), (75, 3745), (105, 2675), (107, 2625), (125, 2247), (175, 1605), (321, 875), (375, 749), (525, 535)]