205894000

素因数分解:

$2^4\times 5^3\times {\mathrm{13}}^1\times {\mathrm{7919}}^1$

素因数の和:7955

約数の個数: 80

約数和(自身を含む): 536215680

約数和(自身を除く): 330321680

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 125, 130, 200, 208, 250, 260, 325, 400, 500, 520, 650, 1000, 1040, 1300, 1625, 2000, 2600, 3250, 5200, 6500, 7919, 13000, 15838, 26000, 31676, 39595, 63352, 79190, 102947, 126704, 158380, 197975, 205894, 316760, 395950, 411788, 514735, 633520, 791900, 823576, 989875, 1029470, 1583800, 1647152, 1979750, 2058940, 2573675, 3167600, 3959500, 4117880, 5147350, 7919000, 8235760, 10294700, 12868375, 15838000, 20589400, 25736750, 41178800, 51473500, 102947000, 205894000]

約数ペア:

[(1, 205894000), (2, 102947000), (4, 51473500), (5, 41178800), (8, 25736750), (10, 20589400), (13, 15838000), (16, 12868375), (20, 10294700), (25, 8235760), (26, 7919000), (40, 5147350), (50, 4117880), (52, 3959500), (65, 3167600), (80, 2573675), (100, 2058940), (104, 1979750), (125, 1647152), (130, 1583800), (200, 1029470), (208, 989875), (250, 823576), (260, 791900), (325, 633520), (400, 514735), (500, 411788), (520, 395950), (650, 316760), (1000, 205894), (1040, 197975), (1300, 158380), (1625, 126704), (2000, 102947), (2600, 79190), (3250, 63352), (5200, 39595), (6500, 31676), (7919, 26000), (13000, 15838)]