25054480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1$

素因数の和:496

約数の個数: 80

約数和(自身を含む): 64603008

約数和(自身を除く): 39548528

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 71, 80, 88, 110, 142, 176, 220, 284, 355, 401, 440, 568, 710, 781, 802, 880, 1136, 1420, 1562, 1604, 2005, 2840, 3124, 3208, 3905, 4010, 4411, 5680, 6248, 6416, 7810, 8020, 8822, 12496, 15620, 16040, 17644, 22055, 28471, 31240, 32080, 35288, 44110, 56942, 62480, 70576, 88220, 113884, 142355, 176440, 227768, 284710, 313181, 352880, 455536, 569420, 626362, 1138840, 1252724, 1565905, 2277680, 2505448, 3131810, 5010896, 6263620, 12527240, 25054480]

約数ペア:

[(1, 25054480), (2, 12527240), (4, 6263620), (5, 5010896), (8, 3131810), (10, 2505448), (11, 2277680), (16, 1565905), (20, 1252724), (22, 1138840), (40, 626362), (44, 569420), (55, 455536), (71, 352880), (80, 313181), (88, 284710), (110, 227768), (142, 176440), (176, 142355), (220, 113884), (284, 88220), (355, 70576), (401, 62480), (440, 56942), (568, 44110), (710, 35288), (781, 32080), (802, 31240), (880, 28471), (1136, 22055), (1420, 17644), (1562, 16040), (1604, 15620), (2005, 12496), (2840, 8822), (3124, 8020), (3208, 7810), (3905, 6416), (4010, 6248), (4411, 5680)]