400260420

素因数分解:

$2^2\times 3^3\times 5^1\times 7^3\times {\mathrm{2161}}^1$

素因数の和:2200

約数の個数: 192

約数和(自身を含む): 1452864000

約数和(自身を除く): 1052603580

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 84, 90, 98, 105, 108, 126, 135, 140, 147, 180, 189, 196, 210, 245, 252, 270, 294, 315, 343, 378, 420, 441, 490, 540, 588, 630, 686, 735, 756, 882, 945, 980, 1029, 1260, 1323, 1372, 1470, 1715, 1764, 1890, 2058, 2161, 2205, 2646, 2940, 3087, 3430, 3780, 4116, 4322, 4410, 5145, 5292, 6174, 6483, 6615, 6860, 8644, 8820, 9261, 10290, 10805, 12348, 12966, 13230, 15127, 15435, 18522, 19449, 20580, 21610, 25932, 26460, 30254, 30870, 32415, 37044, 38898, 43220, 45381, 46305, 58347, 60508, 61740, 64830, 75635, 77796, 90762, 92610, 97245, 105889, 116694, 129660, 136143, 151270, 181524, 185220, 194490, 211778, 226905, 233388, 272286, 291735, 302540, 317667, 388980, 408429, 423556, 453810, 529445, 544572, 583470, 635334, 680715, 741223, 816858, 907620, 953001, 1058890, 1166940, 1270668, 1361430, 1482446, 1588335, 1633716, 1906002, 2042145, 2117780, 2223669, 2722860, 2859003, 2964892, 3176670, 3706115, 3812004, 4084290, 4447338, 4765005, 5718006, 6353340, 6671007, 7412230, 8168580, 8894676, 9530010, 11118345, 11436012, 13342014, 14295015, 14824460, 19060020, 20013021, 22236690, 26684028, 28590030, 33355035, 40026042, 44473380, 57180060, 66710070, 80052084, 100065105, 133420140, 200130210, 400260420]

約数ペア:

[(1, 400260420), (2, 200130210), (3, 133420140), (4, 100065105), (5, 80052084), (6, 66710070), (7, 57180060), (9, 44473380), (10, 40026042), (12, 33355035), (14, 28590030), (15, 26684028), (18, 22236690), (20, 20013021), (21, 19060020), (27, 14824460), (28, 14295015), (30, 13342014), (35, 11436012), (36, 11118345), (42, 9530010), (45, 8894676), (49, 8168580), (54, 7412230), (60, 6671007), (63, 6353340), (70, 5718006), (84, 4765005), (90, 4447338), (98, 4084290), (105, 3812004), (108, 3706115), (126, 3176670), (135, 2964892), (140, 2859003), (147, 2722860), (180, 2223669), (189, 2117780), (196, 2042145), (210, 1906002), (245, 1633716), (252, 1588335), (270, 1482446), (294, 1361430), (315, 1270668), (343, 1166940), (378, 1058890), (420, 953001), (441, 907620), (490, 816858), (540, 741223), (588, 680715), (630, 635334), (686, 583470), (735, 544572), (756, 529445), (882, 453810), (945, 423556), (980, 408429), (1029, 388980), (1260, 317667), (1323, 302540), (1372, 291735), (1470, 272286), (1715, 233388), (1764, 226905), (1890, 211778), (2058, 194490), (2161, 185220), (2205, 181524), (2646, 151270), (2940, 136143), (3087, 129660), (3430, 116694), (3780, 105889), (4116, 97245), (4322, 92610), (4410, 90762), (5145, 77796), (5292, 75635), (6174, 64830), (6483, 61740), (6615, 60508), (6860, 58347), (8644, 46305), (8820, 45381), (9261, 43220), (10290, 38898), (10805, 37044), (12348, 32415), (12966, 30870), (13230, 30254), (15127, 26460), (15435, 25932), (18522, 21610), (19449, 20580)]