257880875

素因数分解:

$5^3\times 7^2\times {\mathrm{71}}^1\times {\mathrm{593}}^1$

素因数の和:693

約数の個数: 48

約数和(自身を含む): 380293056

約数和(自身を除く): 122412181

約数列:

[1, 5, 7, 25, 35, 49, 71, 125, 175, 245, 355, 497, 593, 875, 1225, 1775, 2485, 2965, 3479, 4151, 6125, 8875, 12425, 14825, 17395, 20755, 29057, 42103, 62125, 74125, 86975, 103775, 145285, 210515, 294721, 434875, 518875, 726425, 1052575, 1473605, 2063047, 3632125, 5262875, 7368025, 10315235, 36840125, 51576175, 257880875]

約数ペア:

[(1, 257880875), (5, 51576175), (7, 36840125), (25, 10315235), (35, 7368025), (49, 5262875), (71, 3632125), (125, 2063047), (175, 1473605), (245, 1052575), (355, 726425), (497, 518875), (593, 434875), (875, 294721), (1225, 210515), (1775, 145285), (2485, 103775), (2965, 86975), (3479, 74125), (4151, 62125), (6125, 42103), (8875, 29057), (12425, 20755), (14825, 17395)]