280247967

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1823}}^1$

素因数の和:1908

約数の個数: 48

約数和(自身を含む): 455270400

約数和(自身を除く): 175022433

約数列:

[1, 3, 9, 19, 29, 31, 57, 87, 93, 171, 261, 279, 551, 589, 899, 1653, 1767, 1823, 2697, 4959, 5301, 5469, 8091, 16407, 17081, 34637, 51243, 52867, 56513, 103911, 153729, 158601, 169539, 311733, 475803, 508617, 1004473, 1073747, 1638877, 3013419, 3221241, 4916631, 9040257, 9663723, 14749893, 31138663, 93415989, 280247967]

約数ペア:

[(1, 280247967), (3, 93415989), (9, 31138663), (19, 14749893), (29, 9663723), (31, 9040257), (57, 4916631), (87, 3221241), (93, 3013419), (171, 1638877), (261, 1073747), (279, 1004473), (551, 508617), (589, 475803), (899, 311733), (1653, 169539), (1767, 158601), (1823, 153729), (2697, 103911), (4959, 56513), (5301, 52867), (5469, 51243), (8091, 34637), (16407, 17081)]