78716547

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{431}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 140894208

約数和(自身を除く): 62177661

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 223, 273, 431, 669, 819, 1293, 1561, 2007, 2899, 3017, 3879, 4683, 5603, 8697, 9051, 14049, 16809, 20293, 26091, 27153, 39221, 50427, 60879, 96113, 117663, 182637, 288339, 352989, 672791, 865017, 1249469, 2018373, 3748407, 6055119, 8746283, 11245221, 26238849, 78716547]

約数ペア:

[(1, 78716547), (3, 26238849), (7, 11245221), (9, 8746283), (13, 6055119), (21, 3748407), (39, 2018373), (63, 1249469), (91, 865017), (117, 672791), (223, 352989), (273, 288339), (431, 182637), (669, 117663), (819, 96113), (1293, 60879), (1561, 50427), (2007, 39221), (2899, 27153), (3017, 26091), (3879, 20293), (4683, 16809), (5603, 14049), (8697, 9051)]