256128834

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{419}}^1\times {\mathrm{461}}^1$

素因数の和:915

約数の個数: 64

約数和(自身を含む): 586776960

約数和(自身を除く): 330648126

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 78, 102, 221, 419, 442, 461, 663, 838, 922, 1257, 1326, 1383, 2514, 2766, 5447, 5993, 7123, 7837, 10894, 11986, 14246, 15674, 16341, 17979, 21369, 23511, 32682, 35958, 42738, 47022, 92599, 101881, 185198, 193159, 203762, 277797, 305643, 386318, 555594, 579477, 611286, 1158954, 2511067, 3283703, 5022134, 6567406, 7533201, 9851109, 15066402, 19702218, 42688139, 85376278, 128064417, 256128834]

約数ペア:

[(1, 256128834), (2, 128064417), (3, 85376278), (6, 42688139), (13, 19702218), (17, 15066402), (26, 9851109), (34, 7533201), (39, 6567406), (51, 5022134), (78, 3283703), (102, 2511067), (221, 1158954), (419, 611286), (442, 579477), (461, 555594), (663, 386318), (838, 305643), (922, 277797), (1257, 203762), (1326, 193159), (1383, 185198), (2514, 101881), (2766, 92599), (5447, 47022), (5993, 42738), (7123, 35958), (7837, 32682), (10894, 23511), (11986, 21369), (14246, 17979), (15674, 16341)]