639282560

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{142697}}^1$

素因数の和:142723

約数の個数: 64

約数和(自身を含む): 1746623520

約数和(自身を除く): 1107340960

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, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 142697, 285394, 570788, 713485, 998879, 1141576, 1426970, 1997758, 2283152, 2853940, 3995516, 4566304, 4994395, 5707880, 7991032, 9132608, 9988790, 11415760, 15982064, 18265216, 19977580, 22831520, 31964128, 39955160, 45663040, 63928256, 79910320, 91326080, 127856512, 159820640, 319641280, 639282560]

約数ペア:

[(1, 639282560), (2, 319641280), (4, 159820640), (5, 127856512), (7, 91326080), (8, 79910320), (10, 63928256), (14, 45663040), (16, 39955160), (20, 31964128), (28, 22831520), (32, 19977580), (35, 18265216), (40, 15982064), (56, 11415760), (64, 9988790), (70, 9132608), (80, 7991032), (112, 5707880), (128, 4994395), (140, 4566304), (160, 3995516), (224, 2853940), (280, 2283152), (320, 1997758), (448, 1426970), (560, 1141576), (640, 998879), (896, 713485), (1120, 570788), (2240, 285394), (4480, 142697)]