208568925

素因数分解:

$3^4\times 5^2\times {\mathrm{127}}^1\times {\mathrm{811}}^1$

素因数の和:960

約数の個数: 60

約数和(自身を含む): 389863936

約数和(自身を除く): 181295011

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 127, 135, 225, 381, 405, 635, 675, 811, 1143, 1905, 2025, 2433, 3175, 3429, 4055, 5715, 7299, 9525, 10287, 12165, 17145, 20275, 21897, 28575, 36495, 51435, 60825, 65691, 85725, 102997, 109485, 182475, 257175, 308991, 328455, 514985, 547425, 926973, 1544955, 1642275, 2574925, 2780919, 4634865, 7724775, 8342757, 13904595, 23174325, 41713785, 69522975, 208568925]

約数ペア:

[(1, 208568925), (3, 69522975), (5, 41713785), (9, 23174325), (15, 13904595), (25, 8342757), (27, 7724775), (45, 4634865), (75, 2780919), (81, 2574925), (127, 1642275), (135, 1544955), (225, 926973), (381, 547425), (405, 514985), (635, 328455), (675, 308991), (811, 257175), (1143, 182475), (1905, 109485), (2025, 102997), (2433, 85725), (3175, 65691), (3429, 60825), (4055, 51435), (5715, 36495), (7299, 28575), (9525, 21897), (10287, 20275), (12165, 17145)]