81847915

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{797}}^1$

素因数の和:891

約数の個数: 32

約数和(自身を含む): 110315520

約数和(自身を除く): 28467605

約数列:

[1, 5, 19, 23, 47, 95, 115, 235, 437, 797, 893, 1081, 2185, 3985, 4465, 5405, 15143, 18331, 20539, 37459, 75715, 91655, 102695, 187295, 348289, 711721, 861557, 1741445, 3558605, 4307785, 16369583, 81847915]

約数ペア:

[(1, 81847915), (5, 16369583), (19, 4307785), (23, 3558605), (47, 1741445), (95, 861557), (115, 711721), (235, 348289), (437, 187295), (797, 102695), (893, 91655), (1081, 75715), (2185, 37459), (3985, 20539), (4465, 18331), (5405, 15143)]