18707220

素因数分解:

$2^2\times 3^3\times 5^1\times 7^3\times {\mathrm{101}}^1$

素因数の和:140

約数の個数: 192

約数和(自身を含む): 68544000

約数和(自身を除く): 49836780

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, 101, 105, 108, 126, 135, 140, 147, 180, 189, 196, 202, 210, 245, 252, 270, 294, 303, 315, 343, 378, 404, 420, 441, 490, 505, 540, 588, 606, 630, 686, 707, 735, 756, 882, 909, 945, 980, 1010, 1029, 1212, 1260, 1323, 1372, 1414, 1470, 1515, 1715, 1764, 1818, 1890, 2020, 2058, 2121, 2205, 2646, 2727, 2828, 2940, 3030, 3087, 3430, 3535, 3636, 3780, 4116, 4242, 4410, 4545, 4949, 5145, 5292, 5454, 6060, 6174, 6363, 6615, 6860, 7070, 8484, 8820, 9090, 9261, 9898, 10290, 10605, 10908, 12348, 12726, 13230, 13635, 14140, 14847, 15435, 18180, 18522, 19089, 19796, 20580, 21210, 24745, 25452, 26460, 27270, 29694, 30870, 31815, 34643, 37044, 38178, 42420, 44541, 46305, 49490, 54540, 59388, 61740, 63630, 69286, 74235, 76356, 89082, 92610, 95445, 98980, 103929, 127260, 133623, 138572, 148470, 173215, 178164, 185220, 190890, 207858, 222705, 267246, 296940, 311787, 346430, 381780, 415716, 445410, 519645, 534492, 623574, 668115, 692860, 890820, 935361, 1039290, 1247148, 1336230, 1558935, 1870722, 2078580, 2672460, 3117870, 3741444, 4676805, 6235740, 9353610, 18707220]

約数ペア:

[(1, 18707220), (2, 9353610), (3, 6235740), (4, 4676805), (5, 3741444), (6, 3117870), (7, 2672460), (9, 2078580), (10, 1870722), (12, 1558935), (14, 1336230), (15, 1247148), (18, 1039290), (20, 935361), (21, 890820), (27, 692860), (28, 668115), (30, 623574), (35, 534492), (36, 519645), (42, 445410), (45, 415716), (49, 381780), (54, 346430), (60, 311787), (63, 296940), (70, 267246), (84, 222705), (90, 207858), (98, 190890), (101, 185220), (105, 178164), (108, 173215), (126, 148470), (135, 138572), (140, 133623), (147, 127260), (180, 103929), (189, 98980), (196, 95445), (202, 92610), (210, 89082), (245, 76356), (252, 74235), (270, 69286), (294, 63630), (303, 61740), (315, 59388), (343, 54540), (378, 49490), (404, 46305), (420, 44541), (441, 42420), (490, 38178), (505, 37044), (540, 34643), (588, 31815), (606, 30870), (630, 29694), (686, 27270), (707, 26460), (735, 25452), (756, 24745), (882, 21210), (909, 20580), (945, 19796), (980, 19089), (1010, 18522), (1029, 18180), (1212, 15435), (1260, 14847), (1323, 14140), (1372, 13635), (1414, 13230), (1470, 12726), (1515, 12348), (1715, 10908), (1764, 10605), (1818, 10290), (1890, 9898), (2020, 9261), (2058, 9090), (2121, 8820), (2205, 8484), (2646, 7070), (2727, 6860), (2828, 6615), (2940, 6363), (3030, 6174), (3087, 6060), (3430, 5454), (3535, 5292), (3636, 5145), (3780, 4949), (4116, 4545), (4242, 4410)]