71640125

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{33713}}^1$

素因数の和:33745

約数の個数: 16

約数和(自身を含む): 94668912

約数和(自身を除く): 23028787

約数列:

[1, 5, 17, 25, 85, 125, 425, 2125, 33713, 168565, 573121, 842825, 2865605, 4214125, 14328025, 71640125]

約数ペア:

[(1, 71640125), (5, 14328025), (17, 4214125), (25, 2865605), (85, 842825), (125, 573121), (425, 168565), (2125, 33713)]