81660605

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{1103}}^1$

素因数の和:1205

約数の個数: 32

約数和(自身を含む): 113508864

約数和(自身を除く): 31848259

約数列:

[1, 5, 13, 17, 65, 67, 85, 221, 335, 871, 1103, 1105, 1139, 4355, 5515, 5695, 14339, 14807, 18751, 71695, 73901, 74035, 93755, 243763, 369505, 960713, 1218815, 1256317, 4803565, 6281585, 16332121, 81660605]

約数ペア:

[(1, 81660605), (5, 16332121), (13, 6281585), (17, 4803565), (65, 1256317), (67, 1218815), (85, 960713), (221, 369505), (335, 243763), (871, 93755), (1103, 74035), (1105, 73901), (1139, 71695), (4355, 18751), (5515, 14807), (5695, 14339)]