19402740

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:116

約数の個数: 240

約数和(自身を含む): 73180800

約数和(自身を除く): 53778060

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 29, 30, 35, 36, 42, 45, 54, 58, 59, 60, 63, 70, 81, 84, 87, 90, 105, 108, 116, 118, 126, 135, 140, 145, 162, 174, 177, 180, 189, 203, 210, 236, 252, 261, 270, 290, 295, 315, 324, 348, 354, 378, 405, 406, 413, 420, 435, 522, 531, 540, 567, 580, 590, 609, 630, 708, 756, 783, 810, 812, 826, 870, 885, 945, 1015, 1044, 1062, 1134, 1180, 1218, 1239, 1260, 1305, 1566, 1593, 1620, 1652, 1711, 1740, 1770, 1827, 1890, 2030, 2065, 2124, 2268, 2349, 2436, 2478, 2610, 2655, 2835, 3045, 3132, 3186, 3422, 3540, 3654, 3717, 3780, 3915, 4060, 4130, 4698, 4779, 4956, 5133, 5220, 5310, 5481, 5670, 6090, 6195, 6372, 6844, 7308, 7434, 7830, 7965, 8260, 8555, 9135, 9396, 9558, 10266, 10620, 10962, 11151, 11340, 11745, 11977, 12180, 12390, 14868, 15399, 15660, 15930, 16443, 17110, 18270, 18585, 19116, 20532, 21924, 22302, 23490, 23895, 23954, 24780, 25665, 27405, 30798, 31860, 32886, 33453, 34220, 35931, 36540, 37170, 44604, 46197, 46980, 47790, 47908, 51330, 54810, 55755, 59885, 61596, 65772, 66906, 71862, 74340, 76995, 82215, 92394, 95580, 102660, 107793, 109620, 111510, 119770, 133812, 138591, 143724, 153990, 164430, 167265, 179655, 184788, 215586, 223020, 230985, 239540, 277182, 307980, 323379, 328860, 334530, 359310, 431172, 461970, 538965, 554364, 646758, 669060, 692955, 718620, 923940, 970137, 1077930, 1293516, 1385910, 1616895, 1940274, 2155860, 2771820, 3233790, 3880548, 4850685, 6467580, 9701370, 19402740]

約数ペア:

[(1, 19402740), (2, 9701370), (3, 6467580), (4, 4850685), (5, 3880548), (6, 3233790), (7, 2771820), (9, 2155860), (10, 1940274), (12, 1616895), (14, 1385910), (15, 1293516), (18, 1077930), (20, 970137), (21, 923940), (27, 718620), (28, 692955), (29, 669060), (30, 646758), (35, 554364), (36, 538965), (42, 461970), (45, 431172), (54, 359310), (58, 334530), (59, 328860), (60, 323379), (63, 307980), (70, 277182), (81, 239540), (84, 230985), (87, 223020), (90, 215586), (105, 184788), (108, 179655), (116, 167265), (118, 164430), (126, 153990), (135, 143724), (140, 138591), (145, 133812), (162, 119770), (174, 111510), (177, 109620), (180, 107793), (189, 102660), (203, 95580), (210, 92394), (236, 82215), (252, 76995), (261, 74340), (270, 71862), (290, 66906), (295, 65772), (315, 61596), (324, 59885), (348, 55755), (354, 54810), (378, 51330), (405, 47908), (406, 47790), (413, 46980), (420, 46197), (435, 44604), (522, 37170), (531, 36540), (540, 35931), (567, 34220), (580, 33453), (590, 32886), (609, 31860), (630, 30798), (708, 27405), (756, 25665), (783, 24780), (810, 23954), (812, 23895), (826, 23490), (870, 22302), (885, 21924), (945, 20532), (1015, 19116), (1044, 18585), (1062, 18270), (1134, 17110), (1180, 16443), (1218, 15930), (1239, 15660), (1260, 15399), (1305, 14868), (1566, 12390), (1593, 12180), (1620, 11977), (1652, 11745), (1711, 11340), (1740, 11151), (1770, 10962), (1827, 10620), (1890, 10266), (2030, 9558), (2065, 9396), (2124, 9135), (2268, 8555), (2349, 8260), (2436, 7965), (2478, 7830), (2610, 7434), (2655, 7308), (2835, 6844), (3045, 6372), (3132, 6195), (3186, 6090), (3422, 5670), (3540, 5481), (3654, 5310), (3717, 5220), (3780, 5133), (3915, 4956), (4060, 4779), (4130, 4698)]