19661675

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:164

約数の個数: 48

約数和(自身を含む): 28926720

約数和(自身を除く): 9265045

約数列:

[1, 5, 11, 19, 25, 53, 55, 71, 95, 209, 265, 275, 355, 475, 583, 781, 1007, 1045, 1325, 1349, 1775, 2915, 3763, 3905, 5035, 5225, 6745, 11077, 14575, 14839, 18815, 19525, 25175, 33725, 41393, 55385, 71497, 74195, 94075, 206965, 276925, 357485, 370975, 786467, 1034825, 1787425, 3932335, 19661675]

約数ペア:

[(1, 19661675), (5, 3932335), (11, 1787425), (19, 1034825), (25, 786467), (53, 370975), (55, 357485), (71, 276925), (95, 206965), (209, 94075), (265, 74195), (275, 71497), (355, 55385), (475, 41393), (583, 33725), (781, 25175), (1007, 19525), (1045, 18815), (1325, 14839), (1349, 14575), (1775, 11077), (2915, 6745), (3763, 5225), (3905, 5035)]