15209975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:152

約数の個数: 48

約数和(自身を含む): 22498560

約数和(自身を除く): 7288585

約数列:

[1, 5, 11, 19, 25, 41, 55, 71, 95, 205, 209, 275, 355, 451, 475, 779, 781, 1025, 1045, 1349, 1775, 2255, 2911, 3895, 3905, 5225, 6745, 8569, 11275, 14555, 14839, 19475, 19525, 32021, 33725, 42845, 55309, 72775, 74195, 160105, 214225, 276545, 370975, 608399, 800525, 1382725, 3041995, 15209975]

約数ペア:

[(1, 15209975), (5, 3041995), (11, 1382725), (19, 800525), (25, 608399), (41, 370975), (55, 276545), (71, 214225), (95, 160105), (205, 74195), (209, 72775), (275, 55309), (355, 42845), (451, 33725), (475, 32021), (779, 19525), (781, 19475), (1025, 14839), (1045, 14555), (1349, 11275), (1775, 8569), (2255, 6745), (2911, 5225), (3895, 3905)]