128786978

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{269}}^1\times {\mathrm{293}}^1$

素因数の和:626

約数の個数: 32

約数和(自身を含む): 209563200

約数和(自身を除く): 80776222

約数列:

[1, 2, 19, 38, 43, 86, 269, 293, 538, 586, 817, 1634, 5111, 5567, 10222, 11134, 11567, 12599, 23134, 25198, 78817, 157634, 219773, 239381, 439546, 478762, 1497523, 2995046, 3389131, 6778262, 64393489, 128786978]

約数ペア:

[(1, 128786978), (2, 64393489), (19, 6778262), (38, 3389131), (43, 2995046), (86, 1497523), (269, 478762), (293, 439546), (538, 239381), (586, 219773), (817, 157634), (1634, 78817), (5111, 25198), (5567, 23134), (10222, 12599), (11134, 11567)]