255367475

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:173

約数の個数: 72

約数和(自身を含む): 374038560

約数和(自身を除く): 118671085

約数列:

[1, 5, 11, 25, 29, 41, 55, 71, 121, 145, 205, 275, 319, 355, 451, 605, 725, 781, 1025, 1189, 1595, 1775, 2059, 2255, 2911, 3025, 3509, 3905, 4961, 5945, 7975, 8591, 10295, 11275, 13079, 14555, 17545, 19525, 22649, 24805, 29725, 32021, 42955, 51475, 65395, 72775, 84419, 87725, 113245, 124025, 143869, 160105, 214775, 249139, 326975, 352231, 422095, 566225, 719345, 800525, 928609, 1245695, 1761155, 2110475, 3596725, 4643045, 6228475, 8805775, 10214699, 23215225, 51073495, 255367475]

約数ペア:

[(1, 255367475), (5, 51073495), (11, 23215225), (25, 10214699), (29, 8805775), (41, 6228475), (55, 4643045), (71, 3596725), (121, 2110475), (145, 1761155), (205, 1245695), (275, 928609), (319, 800525), (355, 719345), (451, 566225), (605, 422095), (725, 352231), (781, 326975), (1025, 249139), (1189, 214775), (1595, 160105), (1775, 143869), (2059, 124025), (2255, 113245), (2911, 87725), (3025, 84419), (3509, 72775), (3905, 65395), (4961, 51475), (5945, 42955), (7975, 32021), (8591, 29725), (10295, 24805), (11275, 22649), (13079, 19525), (14555, 17545)]