123998000

素因数分解:

$2^4\times 5^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{521}}^1$

素因数の和:568

約数の個数: 160

約数和(自身を含む): 363512448

約数和(自身を除く): 239514448

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 25, 28, 34, 35, 40, 50, 56, 68, 70, 80, 85, 100, 112, 119, 125, 136, 140, 170, 175, 200, 238, 250, 272, 280, 340, 350, 400, 425, 476, 500, 521, 560, 595, 680, 700, 850, 875, 952, 1000, 1042, 1190, 1360, 1400, 1700, 1750, 1904, 2000, 2084, 2125, 2380, 2605, 2800, 2975, 3400, 3500, 3647, 4168, 4250, 4760, 5210, 5950, 6800, 7000, 7294, 8336, 8500, 8857, 9520, 10420, 11900, 13025, 14000, 14588, 14875, 17000, 17714, 18235, 20840, 23800, 26050, 29176, 29750, 34000, 35428, 36470, 41680, 44285, 47600, 52100, 58352, 59500, 61999, 65125, 70856, 72940, 88570, 91175, 104200, 119000, 123998, 130250, 141712, 145880, 177140, 182350, 208400, 221425, 238000, 247996, 260500, 291760, 309995, 354280, 364700, 442850, 455875, 495992, 521000, 619990, 708560, 729400, 885700, 911750, 991984, 1042000, 1107125, 1239980, 1458800, 1549975, 1771400, 1823500, 2214250, 2479960, 3099950, 3542800, 3647000, 4428500, 4959920, 6199900, 7294000, 7749875, 8857000, 12399800, 15499750, 17714000, 24799600, 30999500, 61999000, 123998000]

約数ペア:

[(1, 123998000), (2, 61999000), (4, 30999500), (5, 24799600), (7, 17714000), (8, 15499750), (10, 12399800), (14, 8857000), (16, 7749875), (17, 7294000), (20, 6199900), (25, 4959920), (28, 4428500), (34, 3647000), (35, 3542800), (40, 3099950), (50, 2479960), (56, 2214250), (68, 1823500), (70, 1771400), (80, 1549975), (85, 1458800), (100, 1239980), (112, 1107125), (119, 1042000), (125, 991984), (136, 911750), (140, 885700), (170, 729400), (175, 708560), (200, 619990), (238, 521000), (250, 495992), (272, 455875), (280, 442850), (340, 364700), (350, 354280), (400, 309995), (425, 291760), (476, 260500), (500, 247996), (521, 238000), (560, 221425), (595, 208400), (680, 182350), (700, 177140), (850, 145880), (875, 141712), (952, 130250), (1000, 123998), (1042, 119000), (1190, 104200), (1360, 91175), (1400, 88570), (1700, 72940), (1750, 70856), (1904, 65125), (2000, 61999), (2084, 59500), (2125, 58352), (2380, 52100), (2605, 47600), (2800, 44285), (2975, 41680), (3400, 36470), (3500, 35428), (3647, 34000), (4168, 29750), (4250, 29176), (4760, 26050), (5210, 23800), (5950, 20840), (6800, 18235), (7000, 17714), (7294, 17000), (8336, 14875), (8500, 14588), (8857, 14000), (9520, 13025), (10420, 11900)]