1780857540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{128489}}^1$

素因数の和:128522

約数の個数: 144

約数和(自身を含む): 6734931840

約数和(自身を除く): 4954074300

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 28, 30, 33, 35, 36, 42, 44, 45, 55, 60, 63, 66, 70, 77, 84, 90, 99, 105, 110, 126, 132, 140, 154, 165, 180, 198, 210, 220, 231, 252, 308, 315, 330, 385, 396, 420, 462, 495, 630, 660, 693, 770, 924, 990, 1155, 1260, 1386, 1540, 1980, 2310, 2772, 3465, 4620, 6930, 13860, 128489, 256978, 385467, 513956, 642445, 770934, 899423, 1156401, 1284890, 1413379, 1541868, 1798846, 1927335, 2312802, 2569780, 2698269, 2826758, 3597692, 3854670, 4240137, 4497115, 4625604, 5396538, 5653516, 5782005, 7066895, 7709340, 8094807, 8480274, 8994230, 9893653, 10793076, 11564010, 12720411, 13491345, 14133790, 16189614, 16960548, 17988460, 19787306, 21200685, 23128020, 25440822, 26982690, 28267580, 29680959, 32379228, 39574612, 40474035, 42401370, 49468265, 50881644, 53965380, 59361918, 63602055, 80948070, 84802740, 89042877, 98936530, 118723836, 127204110, 148404795, 161896140, 178085754, 197873060, 254408220, 296809590, 356171508, 445214385, 593619180, 890428770, 1780857540]

約数ペア:

[(1, 1780857540), (2, 890428770), (3, 593619180), (4, 445214385), (5, 356171508), (6, 296809590), (7, 254408220), (9, 197873060), (10, 178085754), (11, 161896140), (12, 148404795), (14, 127204110), (15, 118723836), (18, 98936530), (20, 89042877), (21, 84802740), (22, 80948070), (28, 63602055), (30, 59361918), (33, 53965380), (35, 50881644), (36, 49468265), (42, 42401370), (44, 40474035), (45, 39574612), (55, 32379228), (60, 29680959), (63, 28267580), (66, 26982690), (70, 25440822), (77, 23128020), (84, 21200685), (90, 19787306), (99, 17988460), (105, 16960548), (110, 16189614), (126, 14133790), (132, 13491345), (140, 12720411), (154, 11564010), (165, 10793076), (180, 9893653), (198, 8994230), (210, 8480274), (220, 8094807), (231, 7709340), (252, 7066895), (308, 5782005), (315, 5653516), (330, 5396538), (385, 4625604), (396, 4497115), (420, 4240137), (462, 3854670), (495, 3597692), (630, 2826758), (660, 2698269), (693, 2569780), (770, 2312802), (924, 1927335), (990, 1798846), (1155, 1541868), (1260, 1413379), (1386, 1284890), (1540, 1156401), (1980, 899423), (2310, 770934), (2772, 642445), (3465, 513956), (4620, 385467), (6930, 256978), (13860, 128489)]