159450025

素因数分解:

$5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{313}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 235484928

約数和(自身を除く): 76034903

約数列:

[1, 5, 7, 25, 35, 41, 71, 175, 205, 287, 313, 355, 497, 1025, 1435, 1565, 1775, 2191, 2485, 2911, 7175, 7825, 10955, 12425, 12833, 14555, 20377, 22223, 54775, 64165, 72775, 89831, 101885, 111115, 155561, 320825, 449155, 509425, 555575, 777805, 911143, 2245775, 3889025, 4555715, 6378001, 22778575, 31890005, 159450025]

約数ペア:

[(1, 159450025), (5, 31890005), (7, 22778575), (25, 6378001), (35, 4555715), (41, 3889025), (71, 2245775), (175, 911143), (205, 777805), (287, 555575), (313, 509425), (355, 449155), (497, 320825), (1025, 155561), (1435, 111115), (1565, 101885), (1775, 89831), (2191, 72775), (2485, 64165), (2911, 54775), (7175, 22223), (7825, 20377), (10955, 14555), (12425, 12833)]