389778025

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2347}}^1$

素因数の和:2450

約数の個数: 48

約数和(自身を含む): 603266944

約数和(自身を除く): 213488919

約数列:

[1, 5, 7, 13, 25, 35, 65, 73, 91, 175, 325, 365, 455, 511, 949, 1825, 2275, 2347, 2555, 4745, 6643, 11735, 12775, 16429, 23725, 30511, 33215, 58675, 82145, 152555, 166075, 171331, 213577, 410725, 762775, 856655, 1067885, 1199317, 2227303, 4283275, 5339425, 5996585, 11136515, 15591121, 29982925, 55682575, 77955605, 389778025]

約数ペア:

[(1, 389778025), (5, 77955605), (7, 55682575), (13, 29982925), (25, 15591121), (35, 11136515), (65, 5996585), (73, 5339425), (91, 4283275), (175, 2227303), (325, 1199317), (365, 1067885), (455, 856655), (511, 762775), (949, 410725), (1825, 213577), (2275, 171331), (2347, 166075), (2555, 152555), (4745, 82145), (6643, 58675), (11735, 33215), (12775, 30511), (16429, 23725)]