128687580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{937}}^1$

素因数の和:1068

約数の個数: 144

約数和(自身を含む): 450690240

約数和(自身を除く): 322002660

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 109, 126, 140, 180, 210, 218, 252, 315, 327, 420, 436, 545, 630, 654, 763, 937, 981, 1090, 1260, 1308, 1526, 1635, 1874, 1962, 2180, 2289, 2811, 3052, 3270, 3748, 3815, 3924, 4578, 4685, 4905, 5622, 6540, 6559, 6867, 7630, 8433, 9156, 9370, 9810, 11244, 11445, 13118, 13734, 14055, 15260, 16866, 18740, 19620, 19677, 22890, 26236, 27468, 28110, 32795, 33732, 34335, 39354, 42165, 45780, 56220, 59031, 65590, 68670, 78708, 84330, 98385, 102133, 118062, 131180, 137340, 168660, 196770, 204266, 236124, 295155, 306399, 393540, 408532, 510665, 590310, 612798, 714931, 919197, 1021330, 1180620, 1225596, 1429862, 1531995, 1838394, 2042660, 2144793, 2859724, 3063990, 3574655, 3676788, 4289586, 4595985, 6127980, 6434379, 7149310, 8579172, 9191970, 10723965, 12868758, 14298620, 18383940, 21447930, 25737516, 32171895, 42895860, 64343790, 128687580]

約数ペア:

[(1, 128687580), (2, 64343790), (3, 42895860), (4, 32171895), (5, 25737516), (6, 21447930), (7, 18383940), (9, 14298620), (10, 12868758), (12, 10723965), (14, 9191970), (15, 8579172), (18, 7149310), (20, 6434379), (21, 6127980), (28, 4595985), (30, 4289586), (35, 3676788), (36, 3574655), (42, 3063990), (45, 2859724), (60, 2144793), (63, 2042660), (70, 1838394), (84, 1531995), (90, 1429862), (105, 1225596), (109, 1180620), (126, 1021330), (140, 919197), (180, 714931), (210, 612798), (218, 590310), (252, 510665), (315, 408532), (327, 393540), (420, 306399), (436, 295155), (545, 236124), (630, 204266), (654, 196770), (763, 168660), (937, 137340), (981, 131180), (1090, 118062), (1260, 102133), (1308, 98385), (1526, 84330), (1635, 78708), (1874, 68670), (1962, 65590), (2180, 59031), (2289, 56220), (2811, 45780), (3052, 42165), (3270, 39354), (3748, 34335), (3815, 33732), (3924, 32795), (4578, 28110), (4685, 27468), (4905, 26236), (5622, 22890), (6540, 19677), (6559, 19620), (6867, 18740), (7630, 16866), (8433, 15260), (9156, 14055), (9370, 13734), (9810, 13118), (11244, 11445)]