77904775

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{18439}}^1$

素因数の和:18475

約数の個数: 18

約数和(自身を含む): 104610120

約数和(自身を除く): 26705345

約数列:

[1, 5, 13, 25, 65, 169, 325, 845, 4225, 18439, 92195, 239707, 460975, 1198535, 3116191, 5992675, 15580955, 77904775]

約数ペア:

[(1, 77904775), (5, 15580955), (13, 5992675), (25, 3116191), (65, 1198535), (169, 460975), (325, 239707), (845, 92195), (4225, 18439)]