1428763840

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{637841}}^1$

素因数の和:637865

約数の個数: 56

約数和(自身を含む): 3888284832

約数和(自身を除く): 2459520992

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 637841, 1275682, 2551364, 3189205, 4464887, 5102728, 6378410, 8929774, 10205456, 12756820, 17859548, 20410912, 22324435, 25513640, 35719096, 40821824, 44648870, 51027280, 71438192, 89297740, 102054560, 142876384, 178595480, 204109120, 285752768, 357190960, 714381920, 1428763840]

約数ペア:

[(1, 1428763840), (2, 714381920), (4, 357190960), (5, 285752768), (7, 204109120), (8, 178595480), (10, 142876384), (14, 102054560), (16, 89297740), (20, 71438192), (28, 51027280), (32, 44648870), (35, 40821824), (40, 35719096), (56, 25513640), (64, 22324435), (70, 20410912), (80, 17859548), (112, 12756820), (140, 10205456), (160, 8929774), (224, 6378410), (280, 5102728), (320, 4464887), (448, 3189205), (560, 2551364), (1120, 1275682), (2240, 637841)]