81237985

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{167}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 106686720

約数和(自身を除く): 25448735

約数列:

[1, 5, 17, 59, 85, 97, 167, 295, 485, 835, 1003, 1649, 2839, 5015, 5723, 8245, 9853, 14195, 16199, 28615, 49265, 80995, 97291, 167501, 275383, 486455, 837505, 955741, 1376915, 4778705, 16247597, 81237985]

約数ペア:

[(1, 81237985), (5, 16247597), (17, 4778705), (59, 1376915), (85, 955741), (97, 837505), (167, 486455), (295, 275383), (485, 167501), (835, 97291), (1003, 80995), (1649, 49265), (2839, 28615), (5015, 16199), (5723, 14195), (8245, 9853)]