19805940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1429}}^1$

素因数の和:1462

約数の個数: 144

約数和(自身を含む): 74954880

約数和(自身を除く): 55148940

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, 1429, 1540, 1980, 2310, 2772, 2858, 3465, 4287, 4620, 5716, 6930, 7145, 8574, 10003, 12861, 13860, 14290, 15719, 17148, 20006, 21435, 25722, 28580, 30009, 31438, 40012, 42870, 47157, 50015, 51444, 60018, 62876, 64305, 78595, 85740, 90027, 94314, 100030, 110033, 120036, 128610, 141471, 150045, 157190, 180054, 188628, 200060, 220066, 235785, 257220, 282942, 300090, 314380, 330099, 360108, 440132, 450135, 471570, 550165, 565884, 600180, 660198, 707355, 900270, 943140, 990297, 1100330, 1320396, 1414710, 1650495, 1800540, 1980594, 2200660, 2829420, 3300990, 3961188, 4951485, 6601980, 9902970, 19805940]

約数ペア:

[(1, 19805940), (2, 9902970), (3, 6601980), (4, 4951485), (5, 3961188), (6, 3300990), (7, 2829420), (9, 2200660), (10, 1980594), (11, 1800540), (12, 1650495), (14, 1414710), (15, 1320396), (18, 1100330), (20, 990297), (21, 943140), (22, 900270), (28, 707355), (30, 660198), (33, 600180), (35, 565884), (36, 550165), (42, 471570), (44, 450135), (45, 440132), (55, 360108), (60, 330099), (63, 314380), (66, 300090), (70, 282942), (77, 257220), (84, 235785), (90, 220066), (99, 200060), (105, 188628), (110, 180054), (126, 157190), (132, 150045), (140, 141471), (154, 128610), (165, 120036), (180, 110033), (198, 100030), (210, 94314), (220, 90027), (231, 85740), (252, 78595), (308, 64305), (315, 62876), (330, 60018), (385, 51444), (396, 50015), (420, 47157), (462, 42870), (495, 40012), (630, 31438), (660, 30009), (693, 28580), (770, 25722), (924, 21435), (990, 20006), (1155, 17148), (1260, 15719), (1386, 14290), (1429, 13860), (1540, 12861), (1980, 10003), (2310, 8574), (2772, 7145), (2858, 6930), (3465, 5716), (4287, 4620)]