208075980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{1009}}^1$

素因数の和:1519

約数の個数: 96

約数和(自身を含む): 667860480

約数和(自身を除く): 459784500

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 491, 982, 1009, 1473, 1964, 2018, 2455, 2946, 3027, 3437, 4036, 4910, 5045, 5892, 6054, 6874, 7063, 7365, 9820, 10090, 10311, 12108, 13748, 14126, 14730, 15135, 17185, 20180, 20622, 21189, 28252, 29460, 30270, 34370, 35315, 41244, 42378, 51555, 60540, 68740, 70630, 84756, 103110, 105945, 141260, 206220, 211890, 423780, 495419, 990838, 1486257, 1981676, 2477095, 2972514, 3467933, 4954190, 5945028, 6935866, 7431285, 9908380, 10403799, 13871732, 14862570, 17339665, 20807598, 29725140, 34679330, 41615196, 52018995, 69358660, 104037990, 208075980]

約数ペア:

[(1, 208075980), (2, 104037990), (3, 69358660), (4, 52018995), (5, 41615196), (6, 34679330), (7, 29725140), (10, 20807598), (12, 17339665), (14, 14862570), (15, 13871732), (20, 10403799), (21, 9908380), (28, 7431285), (30, 6935866), (35, 5945028), (42, 4954190), (60, 3467933), (70, 2972514), (84, 2477095), (105, 1981676), (140, 1486257), (210, 990838), (420, 495419), (491, 423780), (982, 211890), (1009, 206220), (1473, 141260), (1964, 105945), (2018, 103110), (2455, 84756), (2946, 70630), (3027, 68740), (3437, 60540), (4036, 51555), (4910, 42378), (5045, 41244), (5892, 35315), (6054, 34370), (6874, 30270), (7063, 29460), (7365, 28252), (9820, 21189), (10090, 20622), (10311, 20180), (12108, 17185), (13748, 15135), (14126, 14730)]