20618400

素因数分解:

$2^5\times 3^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{71}}^1$

素因数の和:116

約数の個数: 216

約数和(自身を含む): 74807712

約数和(自身を除く): 54189312

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 25, 30, 32, 33, 40, 44, 48, 50, 55, 60, 66, 71, 75, 80, 88, 96, 100, 110, 120, 121, 132, 142, 150, 160, 165, 176, 200, 213, 220, 240, 242, 264, 275, 284, 300, 330, 352, 355, 363, 400, 426, 440, 480, 484, 528, 550, 568, 600, 605, 660, 710, 726, 781, 800, 825, 852, 880, 968, 1056, 1065, 1100, 1136, 1200, 1210, 1320, 1420, 1452, 1562, 1650, 1704, 1760, 1775, 1815, 1936, 2130, 2200, 2272, 2343, 2400, 2420, 2640, 2840, 2904, 3025, 3124, 3300, 3408, 3550, 3630, 3872, 3905, 4260, 4400, 4686, 4840, 5280, 5325, 5680, 5808, 6050, 6248, 6600, 6816, 7100, 7260, 7810, 8520, 8591, 8800, 9075, 9372, 9680, 10650, 11360, 11616, 11715, 12100, 12496, 13200, 14200, 14520, 15620, 17040, 17182, 18150, 18744, 19360, 19525, 21300, 23430, 24200, 24992, 25773, 26400, 28400, 29040, 31240, 34080, 34364, 36300, 37488, 39050, 42600, 42955, 46860, 48400, 51546, 56800, 58080, 58575, 62480, 68728, 72600, 74976, 78100, 85200, 85910, 93720, 96800, 103092, 117150, 124960, 128865, 137456, 145200, 156200, 170400, 171820, 187440, 206184, 214775, 234300, 257730, 274912, 290400, 312400, 343640, 374880, 412368, 429550, 468600, 515460, 624800, 644325, 687280, 824736, 859100, 937200, 1030920, 1288650, 1374560, 1718200, 1874400, 2061840, 2577300, 3436400, 4123680, 5154600, 6872800, 10309200, 20618400]

約数ペア:

[(1, 20618400), (2, 10309200), (3, 6872800), (4, 5154600), (5, 4123680), (6, 3436400), (8, 2577300), (10, 2061840), (11, 1874400), (12, 1718200), (15, 1374560), (16, 1288650), (20, 1030920), (22, 937200), (24, 859100), (25, 824736), (30, 687280), (32, 644325), (33, 624800), (40, 515460), (44, 468600), (48, 429550), (50, 412368), (55, 374880), (60, 343640), (66, 312400), (71, 290400), (75, 274912), (80, 257730), (88, 234300), (96, 214775), (100, 206184), (110, 187440), (120, 171820), (121, 170400), (132, 156200), (142, 145200), (150, 137456), (160, 128865), (165, 124960), (176, 117150), (200, 103092), (213, 96800), (220, 93720), (240, 85910), (242, 85200), (264, 78100), (275, 74976), (284, 72600), (300, 68728), (330, 62480), (352, 58575), (355, 58080), (363, 56800), (400, 51546), (426, 48400), (440, 46860), (480, 42955), (484, 42600), (528, 39050), (550, 37488), (568, 36300), (600, 34364), (605, 34080), (660, 31240), (710, 29040), (726, 28400), (781, 26400), (800, 25773), (825, 24992), (852, 24200), (880, 23430), (968, 21300), (1056, 19525), (1065, 19360), (1100, 18744), (1136, 18150), (1200, 17182), (1210, 17040), (1320, 15620), (1420, 14520), (1452, 14200), (1562, 13200), (1650, 12496), (1704, 12100), (1760, 11715), (1775, 11616), (1815, 11360), (1936, 10650), (2130, 9680), (2200, 9372), (2272, 9075), (2343, 8800), (2400, 8591), (2420, 8520), (2640, 7810), (2840, 7260), (2904, 7100), (3025, 6816), (3124, 6600), (3300, 6248), (3408, 6050), (3550, 5808), (3630, 5680), (3872, 5325), (3905, 5280), (4260, 4840), (4400, 4686)]