261218568

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^2\times {\mathrm{64403}}^1$

素因数の和:64438

約数の個数: 48

約数和(自身を含む): 707155920

約数和(自身を除く): 445937352

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 169, 312, 338, 507, 676, 1014, 1352, 2028, 4056, 64403, 128806, 193209, 257612, 386418, 515224, 772836, 837239, 1545672, 1674478, 2511717, 3348956, 5023434, 6697912, 10046868, 10884107, 20093736, 21768214, 32652321, 43536428, 65304642, 87072856, 130609284, 261218568]

約数ペア:

[(1, 261218568), (2, 130609284), (3, 87072856), (4, 65304642), (6, 43536428), (8, 32652321), (12, 21768214), (13, 20093736), (24, 10884107), (26, 10046868), (39, 6697912), (52, 5023434), (78, 3348956), (104, 2511717), (156, 1674478), (169, 1545672), (312, 837239), (338, 772836), (507, 515224), (676, 386418), (1014, 257612), (1352, 193209), (2028, 128806), (4056, 64403)]