278360489967

素因数分解:

$3^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1\times {\mathrm{4441}}^1$

素因数の和:4896

約数の個数: 64

約数和(自身を含む): 433425484800

約数和(自身を除く): 155064994833

約数列:

[1, 3, 7, 21, 109, 139, 197, 327, 417, 591, 763, 973, 1379, 2289, 2919, 4137, 4441, 13323, 15151, 21473, 27383, 31087, 45453, 64419, 82149, 93261, 106057, 150311, 191681, 318171, 450933, 484069, 575043, 617299, 874877, 1452207, 1851897, 2624631, 2984747, 3388483, 4321093, 6124139, 8954241, 10165449, 12963279, 18372417, 20893229, 62679687, 67285591, 95361593, 121607903, 201856773, 286084779, 364823709, 470999137, 667531151, 851255321, 1412997411, 2002593453, 2553765963, 13255261427, 39765784281, 92786829989, 278360489967]

約数ペア:

[(1, 278360489967), (3, 92786829989), (7, 39765784281), (21, 13255261427), (109, 2553765963), (139, 2002593453), (197, 1412997411), (327, 851255321), (417, 667531151), (591, 470999137), (763, 364823709), (973, 286084779), (1379, 201856773), (2289, 121607903), (2919, 95361593), (4137, 67285591), (4441, 62679687), (13323, 20893229), (15151, 18372417), (21473, 12963279), (27383, 10165449), (31087, 8954241), (45453, 6124139), (64419, 4321093), (82149, 3388483), (93261, 2984747), (106057, 2624631), (150311, 1851897), (191681, 1452207), (318171, 874877), (450933, 617299), (484069, 575043)]