19910880

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{419}}^1$

素因数の和:454

約数の個数: 192

約数和(自身を含む): 76204800

約数和(自身を除く): 56293920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 27, 30, 32, 33, 36, 40, 44, 45, 48, 54, 55, 60, 66, 72, 80, 88, 90, 96, 99, 108, 110, 120, 132, 135, 144, 160, 165, 176, 180, 198, 216, 220, 240, 264, 270, 288, 297, 330, 352, 360, 396, 419, 432, 440, 480, 495, 528, 540, 594, 660, 720, 792, 838, 864, 880, 990, 1056, 1080, 1188, 1257, 1320, 1440, 1485, 1584, 1676, 1760, 1980, 2095, 2160, 2376, 2514, 2640, 2970, 3168, 3352, 3771, 3960, 4190, 4320, 4609, 4752, 5028, 5280, 5940, 6285, 6704, 7542, 7920, 8380, 9218, 9504, 10056, 11313, 11880, 12570, 13408, 13827, 15084, 15840, 16760, 18436, 18855, 20112, 22626, 23045, 23760, 25140, 27654, 30168, 33520, 36872, 37710, 40224, 41481, 45252, 46090, 47520, 50280, 55308, 56565, 60336, 67040, 69135, 73744, 75420, 82962, 90504, 92180, 100560, 110616, 113130, 120672, 124443, 138270, 147488, 150840, 165924, 181008, 184360, 201120, 207405, 221232, 226260, 248886, 276540, 301680, 331848, 362016, 368720, 414810, 442464, 452520, 497772, 553080, 603360, 622215, 663696, 737440, 829620, 905040, 995544, 1106160, 1244430, 1327392, 1659240, 1810080, 1991088, 2212320, 2488860, 3318480, 3982176, 4977720, 6636960, 9955440, 19910880]

約数ペア:

[(1, 19910880), (2, 9955440), (3, 6636960), (4, 4977720), (5, 3982176), (6, 3318480), (8, 2488860), (9, 2212320), (10, 1991088), (11, 1810080), (12, 1659240), (15, 1327392), (16, 1244430), (18, 1106160), (20, 995544), (22, 905040), (24, 829620), (27, 737440), (30, 663696), (32, 622215), (33, 603360), (36, 553080), (40, 497772), (44, 452520), (45, 442464), (48, 414810), (54, 368720), (55, 362016), (60, 331848), (66, 301680), (72, 276540), (80, 248886), (88, 226260), (90, 221232), (96, 207405), (99, 201120), (108, 184360), (110, 181008), (120, 165924), (132, 150840), (135, 147488), (144, 138270), (160, 124443), (165, 120672), (176, 113130), (180, 110616), (198, 100560), (216, 92180), (220, 90504), (240, 82962), (264, 75420), (270, 73744), (288, 69135), (297, 67040), (330, 60336), (352, 56565), (360, 55308), (396, 50280), (419, 47520), (432, 46090), (440, 45252), (480, 41481), (495, 40224), (528, 37710), (540, 36872), (594, 33520), (660, 30168), (720, 27654), (792, 25140), (838, 23760), (864, 23045), (880, 22626), (990, 20112), (1056, 18855), (1080, 18436), (1188, 16760), (1257, 15840), (1320, 15084), (1440, 13827), (1485, 13408), (1584, 12570), (1676, 11880), (1760, 11313), (1980, 10056), (2095, 9504), (2160, 9218), (2376, 8380), (2514, 7920), (2640, 7542), (2970, 6704), (3168, 6285), (3352, 5940), (3771, 5280), (3960, 5028), (4190, 4752), (4320, 4609)]