12990125

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{6113}}^1$

素因数の和:6145

約数の個数: 16

約数和(自身を含む): 17168112

約数和(自身を除く): 4177987

約数列:

[1, 5, 17, 25, 85, 125, 425, 2125, 6113, 30565, 103921, 152825, 519605, 764125, 2598025, 12990125]

約数ペア:

[(1, 12990125), (5, 2598025), (17, 764125), (25, 519605), (85, 152825), (125, 103921), (425, 30565), (2125, 6113)]