1651438984

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{1609}}^1$

素因数の和:1838

約数の個数: 64

約数和(自身を含む): 3408048000

約数和(自身を除く): 1756609016

約数列:

[1, 2, 4, 8, 13, 26, 52, 71, 104, 139, 142, 278, 284, 556, 568, 923, 1112, 1609, 1807, 1846, 3218, 3614, 3692, 6436, 7228, 7384, 9869, 12872, 14456, 19738, 20917, 39476, 41834, 78952, 83668, 114239, 128297, 167336, 223651, 228478, 256594, 447302, 456956, 513188, 894604, 913912, 1026376, 1485107, 1789208, 2907463, 2970214, 5814926, 5940428, 11629852, 11880856, 15879221, 23259704, 31758442, 63516884, 127033768, 206429873, 412859746, 825719492, 1651438984]

約数ペア:

[(1, 1651438984), (2, 825719492), (4, 412859746), (8, 206429873), (13, 127033768), (26, 63516884), (52, 31758442), (71, 23259704), (104, 15879221), (139, 11880856), (142, 11629852), (278, 5940428), (284, 5814926), (556, 2970214), (568, 2907463), (923, 1789208), (1112, 1485107), (1609, 1026376), (1807, 913912), (1846, 894604), (3218, 513188), (3614, 456956), (3692, 447302), (6436, 256594), (7228, 228478), (7384, 223651), (9869, 167336), (12872, 128297), (14456, 114239), (19738, 83668), (20917, 78952), (39476, 41834)]