280267156

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^2\times {\mathrm{127}}^1$

素因数の和:249

約数の個数: 72

約数和(自身を含む): 564781056

約数和(自身を除く): 284513900

約数列:

[1, 2, 4, 13, 26, 31, 37, 52, 62, 74, 124, 127, 148, 254, 403, 481, 508, 806, 962, 1147, 1369, 1612, 1651, 1924, 2294, 2738, 3302, 3937, 4588, 4699, 5476, 6604, 7874, 9398, 14911, 15748, 17797, 18796, 29822, 35594, 42439, 51181, 59644, 61087, 71188, 84878, 102362, 122174, 145669, 169756, 173863, 204724, 244348, 291338, 347726, 551707, 582676, 695452, 1103414, 1893697, 2206828, 2260219, 3787394, 4520438, 5389753, 7574788, 9040876, 10779506, 21559012, 70066789, 140133578, 280267156]

約数ペア:

[(1, 280267156), (2, 140133578), (4, 70066789), (13, 21559012), (26, 10779506), (31, 9040876), (37, 7574788), (52, 5389753), (62, 4520438), (74, 3787394), (124, 2260219), (127, 2206828), (148, 1893697), (254, 1103414), (403, 695452), (481, 582676), (508, 551707), (806, 347726), (962, 291338), (1147, 244348), (1369, 204724), (1612, 173863), (1651, 169756), (1924, 145669), (2294, 122174), (2738, 102362), (3302, 84878), (3937, 71188), (4588, 61087), (4699, 59644), (5476, 51181), (6604, 42439), (7874, 35594), (9398, 29822), (14911, 18796), (15748, 17797)]