87972640825

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{797}}^1\times {\mathrm{259717}}^1$

素因数の和:260541

約数の個数: 24

約数和(自身を含む): 115648269912

約数和(自身を除く): 27675629087

約数列:

[1, 5, 17, 25, 85, 425, 797, 3985, 13549, 19925, 67745, 259717, 338725, 1298585, 4415189, 6492925, 22075945, 110379725, 206994449, 1034972245, 3518905633, 5174861225, 17594528165, 87972640825]

約数ペア:

[(1, 87972640825), (5, 17594528165), (17, 5174861225), (25, 3518905633), (85, 1034972245), (425, 206994449), (797, 110379725), (3985, 22075945), (13549, 6492925), (19925, 4415189), (67745, 1298585), (259717, 338725)]