20466385280

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^2\times {\mathrm{127}}^1\times {\mathrm{2081}}^1$

素因数の和:2249

約数の個数: 192

約数和(自身を含む): 54229271040

約数和(自身を除く): 33762885760

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 121, 127, 128, 160, 176, 220, 242, 254, 320, 352, 440, 484, 508, 605, 635, 640, 704, 880, 968, 1016, 1210, 1270, 1397, 1408, 1760, 1936, 2032, 2081, 2420, 2540, 2794, 3520, 3872, 4064, 4162, 4840, 5080, 5588, 6985, 7040, 7744, 8128, 8324, 9680, 10160, 10405, 11176, 13970, 15367, 15488, 16256, 16648, 19360, 20320, 20810, 22352, 22891, 27940, 30734, 33296, 38720, 40640, 41620, 44704, 45782, 55880, 61468, 66592, 76835, 77440, 81280, 83240, 89408, 91564, 111760, 114455, 122936, 133184, 153670, 166480, 178816, 183128, 223520, 228910, 245872, 251801, 264287, 266368, 307340, 332960, 366256, 447040, 457820, 491744, 503602, 528574, 614680, 665920, 732512, 894080, 915640, 983488, 1007204, 1057148, 1229360, 1259005, 1321435, 1331840, 1465024, 1831280, 1966976, 2014408, 2114296, 2458720, 2518010, 2642870, 2907157, 2930048, 3662560, 4028816, 4228592, 4917440, 5036020, 5285740, 5814314, 7325120, 8057632, 8457184, 9834880, 10072040, 10571480, 11628628, 14535785, 14650240, 16115264, 16914368, 20144080, 21142960, 23257256, 29071570, 31978727, 32230528, 33828736, 40288160, 42285920, 46514512, 58143140, 63957454, 80576320, 84571840, 93029024, 116286280, 127914908, 159893635, 161152640, 169143680, 186058048, 232572560, 255829816, 319787270, 372116096, 465145120, 511659632, 639574540, 930290240, 1023319264, 1279149080, 1860580480, 2046638528, 2558298160, 4093277056, 5116596320, 10233192640, 20466385280]

約数ペア:

[(1, 20466385280), (2, 10233192640), (4, 5116596320), (5, 4093277056), (8, 2558298160), (10, 2046638528), (11, 1860580480), (16, 1279149080), (20, 1023319264), (22, 930290240), (32, 639574540), (40, 511659632), (44, 465145120), (55, 372116096), (64, 319787270), (80, 255829816), (88, 232572560), (110, 186058048), (121, 169143680), (127, 161152640), (128, 159893635), (160, 127914908), (176, 116286280), (220, 93029024), (242, 84571840), (254, 80576320), (320, 63957454), (352, 58143140), (440, 46514512), (484, 42285920), (508, 40288160), (605, 33828736), (635, 32230528), (640, 31978727), (704, 29071570), (880, 23257256), (968, 21142960), (1016, 20144080), (1210, 16914368), (1270, 16115264), (1397, 14650240), (1408, 14535785), (1760, 11628628), (1936, 10571480), (2032, 10072040), (2081, 9834880), (2420, 8457184), (2540, 8057632), (2794, 7325120), (3520, 5814314), (3872, 5285740), (4064, 5036020), (4162, 4917440), (4840, 4228592), (5080, 4028816), (5588, 3662560), (6985, 2930048), (7040, 2907157), (7744, 2642870), (8128, 2518010), (8324, 2458720), (9680, 2114296), (10160, 2014408), (10405, 1966976), (11176, 1831280), (13970, 1465024), (15367, 1331840), (15488, 1321435), (16256, 1259005), (16648, 1229360), (19360, 1057148), (20320, 1007204), (20810, 983488), (22352, 915640), (22891, 894080), (27940, 732512), (30734, 665920), (33296, 614680), (38720, 528574), (40640, 503602), (41620, 491744), (44704, 457820), (45782, 447040), (55880, 366256), (61468, 332960), (66592, 307340), (76835, 266368), (77440, 264287), (81280, 251801), (83240, 245872), (89408, 228910), (91564, 223520), (111760, 183128), (114455, 178816), (122936, 166480), (133184, 153670)]