20115721818

素因数分解:

$2^1\times 3^3\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{251}}^1\times {\mathrm{1303}}^1$

素因数の和:1649

約数の個数: 128

約数和(自身を含む): 48265943040

約数和(自身を除く): 28150221222

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 67, 102, 134, 153, 201, 251, 306, 402, 459, 502, 603, 753, 918, 1139, 1206, 1303, 1506, 1809, 2259, 2278, 2606, 3417, 3618, 3909, 4267, 4518, 6777, 6834, 7818, 8534, 10251, 11727, 12801, 13554, 16817, 20502, 22151, 23454, 25602, 30753, 33634, 35181, 38403, 44302, 50451, 61506, 66453, 70362, 76806, 87301, 100902, 115209, 132906, 151353, 174602, 199359, 230418, 261903, 285889, 302706, 327053, 398718, 454059, 523806, 571778, 598077, 654106, 785709, 857667, 908118, 981159, 1196154, 1484117, 1571418, 1715334, 1962318, 2357127, 2573001, 2943477, 2968234, 4452351, 4714254, 5146002, 5559901, 5886954, 7719003, 8830431, 8904702, 11119802, 13357053, 15438006, 16679703, 17660862, 21912551, 26714106, 33359406, 40071159, 43825102, 50039109, 65737653, 80142318, 100078218, 131475306, 150117327, 197212959, 300234654, 372513367, 394425918, 591638877, 745026734, 1117540101, 1183277754, 2235080202, 3352620303, 6705240606, 10057860909, 20115721818]

約数ペア:

[(1, 20115721818), (2, 10057860909), (3, 6705240606), (6, 3352620303), (9, 2235080202), (17, 1183277754), (18, 1117540101), (27, 745026734), (34, 591638877), (51, 394425918), (54, 372513367), (67, 300234654), (102, 197212959), (134, 150117327), (153, 131475306), (201, 100078218), (251, 80142318), (306, 65737653), (402, 50039109), (459, 43825102), (502, 40071159), (603, 33359406), (753, 26714106), (918, 21912551), (1139, 17660862), (1206, 16679703), (1303, 15438006), (1506, 13357053), (1809, 11119802), (2259, 8904702), (2278, 8830431), (2606, 7719003), (3417, 5886954), (3618, 5559901), (3909, 5146002), (4267, 4714254), (4518, 4452351), (6777, 2968234), (6834, 2943477), (7818, 2573001), (8534, 2357127), (10251, 1962318), (11727, 1715334), (12801, 1571418), (13554, 1484117), (16817, 1196154), (20502, 981159), (22151, 908118), (23454, 857667), (25602, 785709), (30753, 654106), (33634, 598077), (35181, 571778), (38403, 523806), (44302, 454059), (50451, 398718), (61506, 327053), (66453, 302706), (70362, 285889), (76806, 261903), (87301, 230418), (100902, 199359), (115209, 174602), (132906, 151353)]