20679680

素因数分解:

$2^{10}\times 5^1\times 7^1\times {\mathrm{577}}^1$

素因数の和:609

約数の個数: 88

約数和(自身を含む): 56791968

約数和(自身を除く): 36112288

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 560, 577, 640, 896, 1024, 1120, 1154, 1280, 1792, 2240, 2308, 2560, 2885, 3584, 4039, 4480, 4616, 5120, 5770, 7168, 8078, 8960, 9232, 11540, 16156, 17920, 18464, 20195, 23080, 32312, 35840, 36928, 40390, 46160, 64624, 73856, 80780, 92320, 129248, 147712, 161560, 184640, 258496, 295424, 323120, 369280, 516992, 590848, 646240, 738560, 1033984, 1292480, 1477120, 2067968, 2584960, 2954240, 4135936, 5169920, 10339840, 20679680]

約数ペア:

[(1, 20679680), (2, 10339840), (4, 5169920), (5, 4135936), (7, 2954240), (8, 2584960), (10, 2067968), (14, 1477120), (16, 1292480), (20, 1033984), (28, 738560), (32, 646240), (35, 590848), (40, 516992), (56, 369280), (64, 323120), (70, 295424), (80, 258496), (112, 184640), (128, 161560), (140, 147712), (160, 129248), (224, 92320), (256, 80780), (280, 73856), (320, 64624), (448, 46160), (512, 40390), (560, 36928), (577, 35840), (640, 32312), (896, 23080), (1024, 20195), (1120, 18464), (1154, 17920), (1280, 16156), (1792, 11540), (2240, 9232), (2308, 8960), (2560, 8078), (2885, 7168), (3584, 5770), (4039, 5120), (4480, 4616)]