1808967545

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{139}}^1\times {\mathrm{439}}^1$

素因数の和:619

約数の個数: 72

約数和(自身を含む): 2801937600

約数和(自身を除く): 992970055

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 121, 139, 245, 385, 439, 539, 605, 695, 847, 973, 1529, 2195, 2695, 3073, 4235, 4829, 4865, 5929, 6811, 7645, 10703, 15365, 16819, 21511, 24145, 29645, 33803, 34055, 53119, 53515, 61021, 74921, 84095, 107555, 117733, 169015, 236621, 265595, 305105, 371833, 374605, 427147, 588665, 671231, 824131, 1183105, 1859165, 2135735, 2602831, 2990029, 3356155, 4120655, 4698617, 7383541, 13014155, 14950145, 23493085, 32890319, 36917705, 51684787, 164451595, 258423935, 361793509, 1808967545]

約数ペア:

[(1, 1808967545), (5, 361793509), (7, 258423935), (11, 164451595), (35, 51684787), (49, 36917705), (55, 32890319), (77, 23493085), (121, 14950145), (139, 13014155), (245, 7383541), (385, 4698617), (439, 4120655), (539, 3356155), (605, 2990029), (695, 2602831), (847, 2135735), (973, 1859165), (1529, 1183105), (2195, 824131), (2695, 671231), (3073, 588665), (4235, 427147), (4829, 374605), (4865, 371833), (5929, 305105), (6811, 265595), (7645, 236621), (10703, 169015), (15365, 117733), (16819, 107555), (21511, 84095), (24145, 74921), (29645, 61021), (33803, 53515), (34055, 53119)]