128213575

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{607}}^1$

素因数の和:712

約数の個数: 48

約数和(自身を含む): 195416064

約数和(自身を除く): 67202489

約数列:

[1, 5, 7, 17, 25, 35, 71, 85, 119, 175, 355, 425, 497, 595, 607, 1207, 1775, 2485, 2975, 3035, 4249, 6035, 8449, 10319, 12425, 15175, 21245, 30175, 42245, 43097, 51595, 72233, 106225, 211225, 215485, 257975, 301679, 361165, 732649, 1077425, 1508395, 1805825, 3663245, 5128543, 7541975, 18316225, 25642715, 128213575]

約数ペア:

[(1, 128213575), (5, 25642715), (7, 18316225), (17, 7541975), (25, 5128543), (35, 3663245), (71, 1805825), (85, 1508395), (119, 1077425), (175, 732649), (355, 361165), (425, 301679), (497, 257975), (595, 215485), (607, 211225), (1207, 106225), (1775, 72233), (2485, 51595), (2975, 43097), (3035, 42245), (4249, 30175), (6035, 21245), (8449, 15175), (10319, 12425)]