20575800

素因数分解:

$2^3\times 3^2\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:123

約数の個数: 288

約数和(自身を含む): 83566080

約数和(自身を除く): 62990280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 23, 24, 25, 28, 30, 35, 36, 40, 42, 45, 46, 50, 56, 60, 63, 69, 70, 71, 72, 75, 84, 90, 92, 100, 105, 115, 120, 126, 138, 140, 142, 150, 161, 168, 175, 180, 184, 200, 207, 210, 213, 225, 230, 252, 276, 280, 284, 300, 315, 322, 345, 350, 355, 360, 414, 420, 426, 450, 460, 483, 497, 504, 525, 552, 568, 575, 600, 630, 639, 644, 690, 700, 710, 805, 828, 840, 852, 900, 920, 966, 994, 1035, 1050, 1065, 1150, 1260, 1278, 1288, 1380, 1400, 1420, 1449, 1491, 1575, 1610, 1633, 1656, 1704, 1725, 1775, 1800, 1932, 1988, 2070, 2100, 2130, 2300, 2415, 2485, 2520, 2556, 2760, 2840, 2898, 2982, 3150, 3195, 3220, 3266, 3450, 3550, 3864, 3976, 4025, 4140, 4200, 4260, 4473, 4600, 4830, 4899, 4970, 5112, 5175, 5325, 5796, 5964, 6300, 6390, 6440, 6532, 6900, 7100, 7245, 7455, 8050, 8165, 8280, 8520, 8946, 9660, 9798, 9940, 10350, 10650, 11431, 11592, 11928, 12075, 12425, 12600, 12780, 13064, 13800, 14200, 14490, 14697, 14910, 15975, 16100, 16330, 17892, 19320, 19596, 19880, 20700, 21300, 22365, 22862, 24150, 24495, 24850, 25560, 28980, 29394, 29820, 31950, 32200, 32660, 34293, 35784, 36225, 37275, 39192, 40825, 41400, 42600, 44730, 45724, 48300, 48990, 49700, 57155, 57960, 58788, 59640, 63900, 65320, 68586, 72450, 73485, 74550, 81650, 89460, 91448, 96600, 97980, 99400, 102879, 111825, 114310, 117576, 122475, 127800, 137172, 144900, 146970, 149100, 163300, 171465, 178920, 195960, 205758, 223650, 228620, 244950, 274344, 285775, 289800, 293940, 298200, 326600, 342930, 367425, 411516, 447300, 457240, 489900, 514395, 571550, 587880, 685860, 734850, 823032, 857325, 894600, 979800, 1028790, 1143100, 1371720, 1469700, 1714650, 2057580, 2286200, 2571975, 2939400, 3429300, 4115160, 5143950, 6858600, 10287900, 20575800]

約数ペア:

[(1, 20575800), (2, 10287900), (3, 6858600), (4, 5143950), (5, 4115160), (6, 3429300), (7, 2939400), (8, 2571975), (9, 2286200), (10, 2057580), (12, 1714650), (14, 1469700), (15, 1371720), (18, 1143100), (20, 1028790), (21, 979800), (23, 894600), (24, 857325), (25, 823032), (28, 734850), (30, 685860), (35, 587880), (36, 571550), (40, 514395), (42, 489900), (45, 457240), (46, 447300), (50, 411516), (56, 367425), (60, 342930), (63, 326600), (69, 298200), (70, 293940), (71, 289800), (72, 285775), (75, 274344), (84, 244950), (90, 228620), (92, 223650), (100, 205758), (105, 195960), (115, 178920), (120, 171465), (126, 163300), (138, 149100), (140, 146970), (142, 144900), (150, 137172), (161, 127800), (168, 122475), (175, 117576), (180, 114310), (184, 111825), (200, 102879), (207, 99400), (210, 97980), (213, 96600), (225, 91448), (230, 89460), (252, 81650), (276, 74550), (280, 73485), (284, 72450), (300, 68586), (315, 65320), (322, 63900), (345, 59640), (350, 58788), (355, 57960), (360, 57155), (414, 49700), (420, 48990), (426, 48300), (450, 45724), (460, 44730), (483, 42600), (497, 41400), (504, 40825), (525, 39192), (552, 37275), (568, 36225), (575, 35784), (600, 34293), (630, 32660), (639, 32200), (644, 31950), (690, 29820), (700, 29394), (710, 28980), (805, 25560), (828, 24850), (840, 24495), (852, 24150), (900, 22862), (920, 22365), (966, 21300), (994, 20700), (1035, 19880), (1050, 19596), (1065, 19320), (1150, 17892), (1260, 16330), (1278, 16100), (1288, 15975), (1380, 14910), (1400, 14697), (1420, 14490), (1449, 14200), (1491, 13800), (1575, 13064), (1610, 12780), (1633, 12600), (1656, 12425), (1704, 12075), (1725, 11928), (1775, 11592), (1800, 11431), (1932, 10650), (1988, 10350), (2070, 9940), (2100, 9798), (2130, 9660), (2300, 8946), (2415, 8520), (2485, 8280), (2520, 8165), (2556, 8050), (2760, 7455), (2840, 7245), (2898, 7100), (2982, 6900), (3150, 6532), (3195, 6440), (3220, 6390), (3266, 6300), (3450, 5964), (3550, 5796), (3864, 5325), (3976, 5175), (4025, 5112), (4140, 4970), (4200, 4899), (4260, 4830), (4473, 4600)]