9990125

素因数分解:

$5^3\times {\mathrm{229}}^1\times {\mathrm{349}}^1$

素因数の和:593

約数の個数: 16

約数和(自身を含む): 12558000

約数和(自身を除く): 2567875

約数列:

[1, 5, 25, 125, 229, 349, 1145, 1745, 5725, 8725, 28625, 43625, 79921, 399605, 1998025, 9990125]

約数ペア:

[(1, 9990125), (5, 1998025), (25, 399605), (125, 79921), (229, 43625), (349, 28625), (1145, 8725), (1745, 5725)]