257855360

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{57557}}^1$

素因数の和:57583

約数の個数: 64

約数和(自身を含む): 704509920

約数和(自身を除く): 446654560

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, 57557, 115114, 230228, 287785, 402899, 460456, 575570, 805798, 920912, 1151140, 1611596, 1841824, 2014495, 2302280, 3223192, 3683648, 4028990, 4604560, 6446384, 7367296, 8057980, 9209120, 12892768, 16115960, 18418240, 25785536, 32231920, 36836480, 51571072, 64463840, 128927680, 257855360]

約数ペア:

[(1, 257855360), (2, 128927680), (4, 64463840), (5, 51571072), (7, 36836480), (8, 32231920), (10, 25785536), (14, 18418240), (16, 16115960), (20, 12892768), (28, 9209120), (32, 8057980), (35, 7367296), (40, 6446384), (56, 4604560), (64, 4028990), (70, 3683648), (80, 3223192), (112, 2302280), (128, 2014495), (140, 1841824), (160, 1611596), (224, 1151140), (280, 920912), (320, 805798), (448, 575570), (560, 460456), (640, 402899), (896, 287785), (1120, 230228), (2240, 115114), (4480, 57557)]