81026445.000000000

素因数分解:

$2^2\times 3^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:124

約数の個数: 240

約数和(自身を含む): 402494400

約数和(自身を除く): 271993356

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 19, 27, 29, 34, 36, 38, 43, 51, 54, 57, 58, 68, 76, 81, 86, 87, 102, 108, 114, 116, 129, 153, 162, 171, 172, 174, 204, 228, 258, 261, 306, 323, 324, 342, 348, 387, 459, 493, 513, 516, 522, 551, 612, 646, 684, 731, 774, 783, 817, 918, 969, 986, 1026, 1044, 1102, 1161, 1247, 1292, 1377, 1462, 1479, 1539, 1548, 1566, 1634, 1653, 1836, 1938, 1972, 2052, 2193, 2204, 2322, 2349, 2451, 2494, 2754, 2907, 2924, 2958, 3078, 3132, 3268, 3306, 3483, 3741, 3876, 4386, 4437, 4644, 4698, 4902, 4959, 4988, 5508, 5814, 5916, 6156, 6579, 6612, 6966, 7353, 7482, 8721, 8772, 8874, 9367, 9396, 9804, 9918, 11223, 11628, 13158, 13311, 13889, 13932, 14706, 14877, 14964, 17442, 17748, 18734, 19737, 19836, 21199, 22059, 22446, 23693, 26163, 26316, 26622, 27778, 28101, 29412, 29754, 33669, 34884, 37468, 39474, 39933, 41667, 42398, 44118, 44631, 44892, 47386, 52326, 53244, 55556, 56202, 59211, 59508, 63597, 66177, 67338, 71079, 78948, 79866, 83334, 84303, 84796, 88236, 89262, 94772, 101007, 104652, 112404, 118422, 125001, 127194, 132354, 134676, 142158, 159732, 166668, 168606, 178524, 190791, 202014, 213237, 236844, 250002, 252909, 254388, 264708, 284316, 337212, 375003, 381582, 402781, 404028, 426474, 500004, 505818, 572373, 639711, 750006, 758727, 763164, 805562, 852948, 1011636, 1125009, 1144746, 1208343, 1279422, 1500012, 1517454, 1611124, 1717119, 1919133, 2250018, 2289492, 2416686, 2558844, 3034908, 3434238, 3625029, 3838266, 4500036, 4833372, 6868476, 7250058, 7676532, 10875087, 14500116, 21750174, 32625261, 43500348, 65250522, 130501044]

約数ペア:

[(1, 130501044), (2, 65250522), (3, 43500348), (4, 32625261), (6, 21750174), (9, 14500116), (12, 10875087), (17, 7676532), (18, 7250058), (19, 6868476), (27, 4833372), (29, 4500036), (34, 3838266), (36, 3625029), (38, 3434238), (43, 3034908), (51, 2558844), (54, 2416686), (57, 2289492), (58, 2250018), (68, 1919133), (76, 1717119), (81, 1611124), (86, 1517454), (87, 1500012), (102, 1279422), (108, 1208343), (114, 1144746), (116, 1125009), (129, 1011636), (153, 852948), (162, 805562), (171, 763164), (172, 758727), (174, 750006), (204, 639711), (228, 572373), (258, 505818), (261, 500004), (306, 426474), (323, 404028), (324, 402781), (342, 381582), (348, 375003), (387, 337212), (459, 284316), (493, 264708), (513, 254388), (516, 252909), (522, 250002), (551, 236844), (612, 213237), (646, 202014), (684, 190791), (731, 178524), (774, 168606), (783, 166668), (817, 159732), (918, 142158), (969, 134676), (986, 132354), (1026, 127194), (1044, 125001), (1102, 118422), (1161, 112404), (1247, 104652), (1292, 101007), (1377, 94772), (1462, 89262), (1479, 88236), (1539, 84796), (1548, 84303), (1566, 83334), (1634, 79866), (1653, 78948), (1836, 71079), (1938, 67338), (1972, 66177), (2052, 63597), (2193, 59508), (2204, 59211), (2322, 56202), (2349, 55556), (2451, 53244), (2494, 52326), (2754, 47386), (2907, 44892), (2924, 44631), (2958, 44118), (3078, 42398), (3132, 41667), (3268, 39933), (3306, 39474), (3483, 37468), (3741, 34884), (3876, 33669), (4386, 29754), (4437, 29412), (4644, 28101), (4698, 27778), (4902, 26622), (4959, 26316), (4988, 26163), (5508, 23693), (5814, 22446), (5916, 22059), (6156, 21199), (6579, 19836), (6612, 19737), (6966, 18734), (7353, 17748), (7482, 17442), (8721, 14964), (8772, 14877), (8874, 14706), (9367, 13932), (9396, 13889), (9804, 13311), (9918, 13158), (11223, 11628)]