278964543

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1319}}^1$

素因数の和:1392

約数の個数: 64

約数和(自身を含む): 479001600

約数和(自身を除く): 200037057

約数列:

[1, 3, 11, 13, 17, 29, 33, 39, 51, 87, 143, 187, 221, 319, 377, 429, 493, 561, 663, 957, 1131, 1319, 1479, 2431, 3957, 4147, 5423, 6409, 7293, 12441, 14509, 16269, 17147, 19227, 22423, 38251, 43527, 51441, 67269, 70499, 114753, 188617, 211497, 246653, 291499, 420761, 497263, 565851, 650267, 739959, 874497, 1262283, 1491789, 1950801, 3206489, 5469893, 7152937, 8453471, 9619467, 16409679, 21458811, 25360413, 92988181, 278964543]

約数ペア:

[(1, 278964543), (3, 92988181), (11, 25360413), (13, 21458811), (17, 16409679), (29, 9619467), (33, 8453471), (39, 7152937), (51, 5469893), (87, 3206489), (143, 1950801), (187, 1491789), (221, 1262283), (319, 874497), (377, 739959), (429, 650267), (493, 565851), (561, 497263), (663, 420761), (957, 291499), (1131, 246653), (1319, 211497), (1479, 188617), (2431, 114753), (3957, 70499), (4147, 67269), (5423, 51441), (6409, 43527), (7293, 38251), (12441, 22423), (14509, 19227), (16269, 17147)]