20548118520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{383}}^1\times {\mathrm{2099}}^1$

素因数の和:2570

約数の個数: 192

約数和(自身を含む): 67931136000

約数和(自身を除く): 47383017480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 71, 72, 90, 120, 142, 180, 213, 284, 355, 360, 383, 426, 568, 639, 710, 766, 852, 1065, 1149, 1278, 1420, 1532, 1704, 1915, 2099, 2130, 2298, 2556, 2840, 3064, 3195, 3447, 3830, 4198, 4260, 4596, 5112, 5745, 6297, 6390, 6894, 7660, 8396, 8520, 9192, 10495, 11490, 12594, 12780, 13788, 15320, 16792, 17235, 18891, 20990, 22980, 25188, 25560, 27193, 27576, 31485, 34470, 37782, 41980, 45960, 50376, 54386, 62970, 68940, 75564, 81579, 83960, 94455, 108772, 125940, 135965, 137880, 149029, 151128, 163158, 188910, 217544, 244737, 251880, 271930, 298058, 326316, 377820, 407895, 447087, 489474, 543860, 596116, 652632, 745145, 755640, 803917, 815790, 894174, 978948, 1087720, 1192232, 1223685, 1341261, 1490290, 1607834, 1631580, 1788348, 1957896, 2235435, 2411751, 2447370, 2682522, 2980580, 3215668, 3263160, 3576696, 4019585, 4470870, 4823502, 4894740, 5365044, 5961160, 6431336, 6706305, 7235253, 8039170, 8941740, 9647004, 9789480, 10730088, 12058755, 13412610, 14470506, 16078340, 17883480, 19294008, 24117510, 26825220, 28941012, 32156680, 36176265, 48235020, 53650440, 57078107, 57882024, 72352530, 96470040, 114156214, 144705060, 171234321, 228312428, 285390535, 289410120, 342468642, 456624856, 513702963, 570781070, 684937284, 856171605, 1027405926, 1141562140, 1369874568, 1712343210, 2054811852, 2283124280, 2568514815, 3424686420, 4109623704, 5137029630, 6849372840, 10274059260, 20548118520]

約数ペア:

[(1, 20548118520), (2, 10274059260), (3, 6849372840), (4, 5137029630), (5, 4109623704), (6, 3424686420), (8, 2568514815), (9, 2283124280), (10, 2054811852), (12, 1712343210), (15, 1369874568), (18, 1141562140), (20, 1027405926), (24, 856171605), (30, 684937284), (36, 570781070), (40, 513702963), (45, 456624856), (60, 342468642), (71, 289410120), (72, 285390535), (90, 228312428), (120, 171234321), (142, 144705060), (180, 114156214), (213, 96470040), (284, 72352530), (355, 57882024), (360, 57078107), (383, 53650440), (426, 48235020), (568, 36176265), (639, 32156680), (710, 28941012), (766, 26825220), (852, 24117510), (1065, 19294008), (1149, 17883480), (1278, 16078340), (1420, 14470506), (1532, 13412610), (1704, 12058755), (1915, 10730088), (2099, 9789480), (2130, 9647004), (2298, 8941740), (2556, 8039170), (2840, 7235253), (3064, 6706305), (3195, 6431336), (3447, 5961160), (3830, 5365044), (4198, 4894740), (4260, 4823502), (4596, 4470870), (5112, 4019585), (5745, 3576696), (6297, 3263160), (6390, 3215668), (6894, 2980580), (7660, 2682522), (8396, 2447370), (8520, 2411751), (9192, 2235435), (10495, 1957896), (11490, 1788348), (12594, 1631580), (12780, 1607834), (13788, 1490290), (15320, 1341261), (16792, 1223685), (17235, 1192232), (18891, 1087720), (20990, 978948), (22980, 894174), (25188, 815790), (25560, 803917), (27193, 755640), (27576, 745145), (31485, 652632), (34470, 596116), (37782, 543860), (41980, 489474), (45960, 447087), (50376, 407895), (54386, 377820), (62970, 326316), (68940, 298058), (75564, 271930), (81579, 251880), (83960, 244737), (94455, 217544), (108772, 188910), (125940, 163158), (135965, 151128), (137880, 149029)]