215911920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{128519}}^1$

素因数の和:128542

約数の個数: 80

約数和(自身を含む): 764951040

約数和(自身を除く): 549039120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 128519, 257038, 385557, 514076, 642595, 771114, 899633, 1028152, 1285190, 1542228, 1799266, 1927785, 2056304, 2570380, 2698899, 3084456, 3598532, 3855570, 4498165, 5140760, 5397798, 6168912, 7197064, 7711140, 8996330, 10281520, 10795596, 13494495, 14394128, 15422280, 17992660, 21591192, 26988990, 30844560, 35985320, 43182384, 53977980, 71970640, 107955960, 215911920]

約数ペア:

[(1, 215911920), (2, 107955960), (3, 71970640), (4, 53977980), (5, 43182384), (6, 35985320), (7, 30844560), (8, 26988990), (10, 21591192), (12, 17992660), (14, 15422280), (15, 14394128), (16, 13494495), (20, 10795596), (21, 10281520), (24, 8996330), (28, 7711140), (30, 7197064), (35, 6168912), (40, 5397798), (42, 5140760), (48, 4498165), (56, 3855570), (60, 3598532), (70, 3084456), (80, 2698899), (84, 2570380), (105, 2056304), (112, 1927785), (120, 1799266), (140, 1542228), (168, 1285190), (210, 1028152), (240, 899633), (280, 771114), (336, 642595), (420, 514076), (560, 385557), (840, 257038), (1680, 128519)]