81311735

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:335

約数の個数: 32

約数和(自身を含む): 106272000

約数和(自身を除く): 24960265

約数列:

[1, 5, 19, 59, 89, 95, 163, 295, 445, 815, 1121, 1691, 3097, 5251, 5605, 8455, 9617, 14507, 15485, 26255, 48085, 72535, 99769, 182723, 275633, 498845, 855913, 913615, 1378165, 4279565, 16262347, 81311735]

約数ペア:

[(1, 81311735), (5, 16262347), (19, 4279565), (59, 1378165), (89, 913615), (95, 855913), (163, 498845), (295, 275633), (445, 182723), (815, 99769), (1121, 72535), (1691, 48085), (3097, 26255), (5251, 15485), (5605, 14507), (8455, 9617)]