387996895

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{7643}}^1$

素因数の和:7743

約数の個数: 32

約数和(自身を含む): 554770944

約数和(自身を除く): 166774049

約数列:

[1, 5, 11, 13, 55, 65, 71, 143, 355, 715, 781, 923, 3905, 4615, 7643, 10153, 38215, 50765, 84073, 99359, 420365, 496795, 542653, 1092949, 2713265, 5464745, 5969183, 7054489, 29845915, 35272445, 77599379, 387996895]

約数ペア:

[(1, 387996895), (5, 77599379), (11, 35272445), (13, 29845915), (55, 7054489), (65, 5969183), (71, 5464745), (143, 2713265), (355, 1092949), (715, 542653), (781, 496795), (923, 420365), (3905, 99359), (4615, 84073), (7643, 50765), (10153, 38215)]