263243487

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{283}}^1$

素因数の和:400

約数の個数: 64

約数和(自身を含む): 425972736

約数和(自身を除く): 162729249

約数列:

[1, 3, 13, 17, 23, 39, 51, 61, 69, 183, 221, 283, 299, 391, 663, 793, 849, 897, 1037, 1173, 1403, 2379, 3111, 3679, 4209, 4811, 5083, 6509, 11037, 13481, 14433, 15249, 17263, 18239, 19527, 23851, 40443, 51789, 54717, 62543, 71553, 84617, 110653, 187629, 224419, 253851, 293471, 310063, 331959, 397049, 673257, 880413, 930189, 1191147, 1438489, 3815123, 4315467, 5161637, 6749833, 11445369, 15484911, 20249499, 87747829, 263243487]

約数ペア:

[(1, 263243487), (3, 87747829), (13, 20249499), (17, 15484911), (23, 11445369), (39, 6749833), (51, 5161637), (61, 4315467), (69, 3815123), (183, 1438489), (221, 1191147), (283, 930189), (299, 880413), (391, 673257), (663, 397049), (793, 331959), (849, 310063), (897, 293471), (1037, 253851), (1173, 224419), (1403, 187629), (2379, 110653), (3111, 84617), (3679, 71553), (4209, 62543), (4811, 54717), (5083, 51789), (6509, 40443), (11037, 23851), (13481, 19527), (14433, 18239), (15249, 17263)]