20544480

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1297}}^1$

素因数の和:1329

約数の個数: 144

約数和(自身を含む): 76540464

約数和(自身を除く): 55995984

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 96, 99, 110, 120, 132, 144, 160, 165, 176, 180, 198, 220, 240, 264, 288, 330, 352, 360, 396, 440, 480, 495, 528, 660, 720, 792, 880, 990, 1056, 1297, 1320, 1440, 1584, 1760, 1980, 2594, 2640, 3168, 3891, 3960, 5188, 5280, 6485, 7782, 7920, 10376, 11673, 12970, 14267, 15564, 15840, 19455, 20752, 23346, 25940, 28534, 31128, 38910, 41504, 42801, 46692, 51880, 57068, 58365, 62256, 71335, 77820, 85602, 93384, 103760, 114136, 116730, 124512, 128403, 142670, 155640, 171204, 186768, 207520, 214005, 228272, 233460, 256806, 285340, 311280, 342408, 373536, 428010, 456544, 466920, 513612, 570680, 622560, 642015, 684816, 856020, 933840, 1027224, 1141360, 1284030, 1369632, 1712040, 1867680, 2054448, 2282720, 2568060, 3424080, 4108896, 5136120, 6848160, 10272240, 20544480]

約数ペア:

[(1, 20544480), (2, 10272240), (3, 6848160), (4, 5136120), (5, 4108896), (6, 3424080), (8, 2568060), (9, 2282720), (10, 2054448), (11, 1867680), (12, 1712040), (15, 1369632), (16, 1284030), (18, 1141360), (20, 1027224), (22, 933840), (24, 856020), (30, 684816), (32, 642015), (33, 622560), (36, 570680), (40, 513612), (44, 466920), (45, 456544), (48, 428010), (55, 373536), (60, 342408), (66, 311280), (72, 285340), (80, 256806), (88, 233460), (90, 228272), (96, 214005), (99, 207520), (110, 186768), (120, 171204), (132, 155640), (144, 142670), (160, 128403), (165, 124512), (176, 116730), (180, 114136), (198, 103760), (220, 93384), (240, 85602), (264, 77820), (288, 71335), (330, 62256), (352, 58365), (360, 57068), (396, 51880), (440, 46692), (480, 42801), (495, 41504), (528, 38910), (660, 31128), (720, 28534), (792, 25940), (880, 23346), (990, 20752), (1056, 19455), (1297, 15840), (1320, 15564), (1440, 14267), (1584, 12970), (1760, 11673), (1980, 10376), (2594, 7920), (2640, 7782), (3168, 6485), (3891, 5280), (3960, 5188)]