209498000

素因数分解:

$2^4\times 5^3\times {\mathrm{31}}^2\times {\mathrm{109}}^1$

素因数の和:194

約数の個数: 120

約数和(自身を含む): 528236280

約数和(自身を除く): 318738280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 109, 124, 125, 155, 200, 218, 248, 250, 310, 400, 436, 496, 500, 545, 620, 775, 872, 961, 1000, 1090, 1240, 1550, 1744, 1922, 2000, 2180, 2480, 2725, 3100, 3379, 3844, 3875, 4360, 4805, 5450, 6200, 6758, 7688, 7750, 8720, 9610, 10900, 12400, 13516, 13625, 15376, 15500, 16895, 19220, 21800, 24025, 27032, 27250, 31000, 33790, 38440, 43600, 48050, 54064, 54500, 62000, 67580, 76880, 84475, 96100, 104749, 109000, 120125, 135160, 168950, 192200, 209498, 218000, 240250, 270320, 337900, 384400, 418996, 422375, 480500, 523745, 675800, 837992, 844750, 961000, 1047490, 1351600, 1675984, 1689500, 1922000, 2094980, 2618725, 3379000, 4189960, 5237450, 6758000, 8379920, 10474900, 13093625, 20949800, 26187250, 41899600, 52374500, 104749000, 209498000]

約数ペア:

[(1, 209498000), (2, 104749000), (4, 52374500), (5, 41899600), (8, 26187250), (10, 20949800), (16, 13093625), (20, 10474900), (25, 8379920), (31, 6758000), (40, 5237450), (50, 4189960), (62, 3379000), (80, 2618725), (100, 2094980), (109, 1922000), (124, 1689500), (125, 1675984), (155, 1351600), (200, 1047490), (218, 961000), (248, 844750), (250, 837992), (310, 675800), (400, 523745), (436, 480500), (496, 422375), (500, 418996), (545, 384400), (620, 337900), (775, 270320), (872, 240250), (961, 218000), (1000, 209498), (1090, 192200), (1240, 168950), (1550, 135160), (1744, 120125), (1922, 109000), (2000, 104749), (2180, 96100), (2480, 84475), (2725, 76880), (3100, 67580), (3379, 62000), (3844, 54500), (3875, 54064), (4360, 48050), (4805, 43600), (5450, 38440), (6200, 33790), (6758, 31000), (7688, 27250), (7750, 27032), (8720, 24025), (9610, 21800), (10900, 19220), (12400, 16895), (13516, 15500), (13625, 15376)]