20808548730

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{647}}^1\times {\mathrm{5179}}^1$

素因数の和:5865

約数の個数: 128

約数和(自身を含む): 58002739200

約数和(自身を除く): 37194190470

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 27, 30, 45, 46, 54, 69, 90, 115, 135, 138, 207, 230, 270, 345, 414, 621, 647, 690, 1035, 1242, 1294, 1941, 2070, 3105, 3235, 3882, 5179, 5823, 6210, 6470, 9705, 10358, 11646, 14881, 15537, 17469, 19410, 25895, 29115, 29762, 31074, 34938, 44643, 46611, 51790, 58230, 74405, 77685, 87345, 89286, 93222, 119117, 133929, 139833, 148810, 155370, 174690, 223215, 233055, 238234, 267858, 279666, 357351, 401787, 446430, 466110, 595585, 669645, 699165, 714702, 803574, 1072053, 1191170, 1339290, 1398330, 1786755, 2008935, 2144106, 3216159, 3350813, 3573510, 4017870, 5360265, 6432318, 6701626, 10052439, 10720530, 16080795, 16754065, 20104878, 30157317, 32161590, 33508130, 50262195, 60314634, 77068699, 90471951, 100524390, 150786585, 154137398, 180943902, 231206097, 301573170, 385343495, 452359755, 462412194, 693618291, 770686990, 904719510, 1156030485, 1387236582, 2080854873, 2312060970, 3468091455, 4161709746, 6936182910, 10404274365, 20808548730]

約数ペア:

[(1, 20808548730), (2, 10404274365), (3, 6936182910), (5, 4161709746), (6, 3468091455), (9, 2312060970), (10, 2080854873), (15, 1387236582), (18, 1156030485), (23, 904719510), (27, 770686990), (30, 693618291), (45, 462412194), (46, 452359755), (54, 385343495), (69, 301573170), (90, 231206097), (115, 180943902), (135, 154137398), (138, 150786585), (207, 100524390), (230, 90471951), (270, 77068699), (345, 60314634), (414, 50262195), (621, 33508130), (647, 32161590), (690, 30157317), (1035, 20104878), (1242, 16754065), (1294, 16080795), (1941, 10720530), (2070, 10052439), (3105, 6701626), (3235, 6432318), (3882, 5360265), (5179, 4017870), (5823, 3573510), (6210, 3350813), (6470, 3216159), (9705, 2144106), (10358, 2008935), (11646, 1786755), (14881, 1398330), (15537, 1339290), (17469, 1191170), (19410, 1072053), (25895, 803574), (29115, 714702), (29762, 699165), (31074, 669645), (34938, 595585), (44643, 466110), (46611, 446430), (51790, 401787), (58230, 357351), (74405, 279666), (77685, 267858), (87345, 238234), (89286, 233055), (93222, 223215), (119117, 174690), (133929, 155370), (139833, 148810)]