19415435

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:315

約数の個数: 32

約数和(自身を含む): 26880000

約数和(自身を除く): 7464565

約数列:

[1, 5, 13, 19, 65, 79, 95, 199, 247, 395, 995, 1027, 1235, 1501, 2587, 3781, 5135, 7505, 12935, 15721, 18905, 19513, 49153, 78605, 97565, 204373, 245765, 298699, 1021865, 1493495, 3883087, 19415435]

約数ペア:

[(1, 19415435), (5, 3883087), (13, 1493495), (19, 1021865), (65, 298699), (79, 245765), (95, 204373), (199, 97565), (247, 78605), (395, 49153), (995, 19513), (1027, 18905), (1235, 15721), (1501, 12935), (2587, 7505), (3781, 5135)]