78807775

素因数分解:

$5^2\times {\mathrm{23}}^2\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:216

約数の個数: 36

約数和(自身を含む): 104915160

約数和(自身を除く): 26107385

約数列:

[1, 5, 23, 25, 59, 101, 115, 295, 505, 529, 575, 1357, 1475, 2323, 2525, 2645, 5959, 6785, 11615, 13225, 29795, 31211, 33925, 53429, 58075, 137057, 148975, 156055, 267145, 685285, 780275, 1335725, 3152311, 3426425, 15761555, 78807775]

約数ペア:

[(1, 78807775), (5, 15761555), (23, 3426425), (25, 3152311), (59, 1335725), (101, 780275), (115, 685285), (295, 267145), (505, 156055), (529, 148975), (575, 137057), (1357, 58075), (1475, 53429), (2323, 33925), (2525, 31211), (2645, 29795), (5959, 13225), (6785, 11615)]