19962880

素因数分解:

$2^{10}\times 5^1\times 7^1\times {\mathrm{557}}^1$

素因数の和:589

約数の個数: 88

約数和(自身を含む): 54826848

約数和(自身を除く): 34863968

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, 557, 560, 640, 896, 1024, 1114, 1120, 1280, 1792, 2228, 2240, 2560, 2785, 3584, 3899, 4456, 4480, 5120, 5570, 7168, 7798, 8912, 8960, 11140, 15596, 17824, 17920, 19495, 22280, 31192, 35648, 35840, 38990, 44560, 62384, 71296, 77980, 89120, 124768, 142592, 155960, 178240, 249536, 285184, 311920, 356480, 499072, 570368, 623840, 712960, 998144, 1247680, 1425920, 1996288, 2495360, 2851840, 3992576, 4990720, 9981440, 19962880]

約数ペア:

[(1, 19962880), (2, 9981440), (4, 4990720), (5, 3992576), (7, 2851840), (8, 2495360), (10, 1996288), (14, 1425920), (16, 1247680), (20, 998144), (28, 712960), (32, 623840), (35, 570368), (40, 499072), (56, 356480), (64, 311920), (70, 285184), (80, 249536), (112, 178240), (128, 155960), (140, 142592), (160, 124768), (224, 89120), (256, 77980), (280, 71296), (320, 62384), (448, 44560), (512, 38990), (557, 35840), (560, 35648), (640, 31192), (896, 22280), (1024, 19495), (1114, 17920), (1120, 17824), (1280, 15596), (1792, 11140), (2228, 8960), (2240, 8912), (2560, 7798), (2785, 7168), (3584, 5570), (3899, 5120), (4456, 4480)]