205720900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{26717}}^1$

素因数の和:26749

約数の個数: 72

約数和(自身を含む): 556589376

約数和(自身を除く): 350868476

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 110, 140, 154, 175, 220, 275, 308, 350, 385, 550, 700, 770, 1100, 1540, 1925, 3850, 7700, 26717, 53434, 106868, 133585, 187019, 267170, 293887, 374038, 534340, 587774, 667925, 748076, 935095, 1175548, 1335850, 1469435, 1870190, 2057209, 2671700, 2938870, 3740380, 4114418, 4675475, 5877740, 7347175, 8228836, 9350950, 10286045, 14694350, 18701900, 20572090, 29388700, 41144180, 51430225, 102860450, 205720900]

約数ペア:

[(1, 205720900), (2, 102860450), (4, 51430225), (5, 41144180), (7, 29388700), (10, 20572090), (11, 18701900), (14, 14694350), (20, 10286045), (22, 9350950), (25, 8228836), (28, 7347175), (35, 5877740), (44, 4675475), (50, 4114418), (55, 3740380), (70, 2938870), (77, 2671700), (100, 2057209), (110, 1870190), (140, 1469435), (154, 1335850), (175, 1175548), (220, 935095), (275, 748076), (308, 667925), (350, 587774), (385, 534340), (550, 374038), (700, 293887), (770, 267170), (1100, 187019), (1540, 133585), (1925, 106868), (3850, 53434), (7700, 26717)]