778865139

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{5399}}^1$

素因数の和:5561

約数の個数: 40

約数和(自身を含む): 1262368800

約数和(自身を除く): 483503661

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 137, 351, 411, 1053, 1233, 1781, 3699, 5343, 5399, 11097, 16029, 16197, 48087, 48591, 70187, 144261, 145773, 210561, 437319, 631683, 739663, 1895049, 2218989, 5685147, 6656967, 9615619, 19970901, 28846857, 59912703, 86540571, 259621713, 778865139]

約数ペア:

[(1, 778865139), (3, 259621713), (9, 86540571), (13, 59912703), (27, 28846857), (39, 19970901), (81, 9615619), (117, 6656967), (137, 5685147), (351, 2218989), (411, 1895049), (1053, 739663), (1233, 631683), (1781, 437319), (3699, 210561), (5343, 145773), (5399, 144261), (11097, 70187), (16029, 48591), (16197, 48087)]