15951925

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:154

約数の個数: 48

約数和(自身を含む): 23569920

約数和(自身を除く): 7617995

約数列:

[1, 5, 11, 19, 25, 43, 55, 71, 95, 209, 215, 275, 355, 473, 475, 781, 817, 1045, 1075, 1349, 1775, 2365, 3053, 3905, 4085, 5225, 6745, 8987, 11825, 14839, 15265, 19525, 20425, 33583, 33725, 44935, 58007, 74195, 76325, 167915, 224675, 290035, 370975, 638077, 839575, 1450175, 3190385, 15951925]

約数ペア:

[(1, 15951925), (5, 3190385), (11, 1450175), (19, 839575), (25, 638077), (43, 370975), (55, 290035), (71, 224675), (95, 167915), (209, 76325), (215, 74195), (275, 58007), (355, 44935), (473, 33725), (475, 33583), (781, 20425), (817, 19525), (1045, 15265), (1075, 14839), (1349, 11825), (1775, 8987), (2365, 6745), (3053, 5225), (3905, 4085)]