208055900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^3\times {\mathrm{947}}^1$

素因数の和:1000

約数の個数: 72

約数和(自身を含む): 489604080

約数和(自身を除く): 281548180

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 169, 260, 325, 338, 650, 676, 845, 947, 1300, 1690, 1894, 2197, 3380, 3788, 4225, 4394, 4735, 8450, 8788, 9470, 10985, 12311, 16900, 18940, 21970, 23675, 24622, 43940, 47350, 49244, 54925, 61555, 94700, 109850, 123110, 160043, 219700, 246220, 307775, 320086, 615550, 640172, 800215, 1231100, 1600430, 2080559, 3200860, 4001075, 4161118, 8002150, 8322236, 10402795, 16004300, 20805590, 41611180, 52013975, 104027950, 208055900]

約数ペア:

[(1, 208055900), (2, 104027950), (4, 52013975), (5, 41611180), (10, 20805590), (13, 16004300), (20, 10402795), (25, 8322236), (26, 8002150), (50, 4161118), (52, 4001075), (65, 3200860), (100, 2080559), (130, 1600430), (169, 1231100), (260, 800215), (325, 640172), (338, 615550), (650, 320086), (676, 307775), (845, 246220), (947, 219700), (1300, 160043), (1690, 123110), (1894, 109850), (2197, 94700), (3380, 61555), (3788, 54925), (4225, 49244), (4394, 47350), (4735, 43940), (8450, 24622), (8788, 23675), (9470, 21970), (10985, 18940), (12311, 16900)]