131775

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{251}}^1$

素因数の和:271

約数の個数: 24

約数和(自身を含む): 249984

約数和(自身を除く): 118209

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 251, 525, 753, 1255, 1757, 3765, 5271, 6275, 8785, 18825, 26355, 43925, 131775]

約数ペア:

[(1, 131775), (3, 43925), (5, 26355), (7, 18825), (15, 8785), (21, 6275), (25, 5271), (35, 3765), (75, 1757), (105, 1255), (175, 753), (251, 525)]