208209520

素因数分解:

$2^4\times 5^1\times {\mathrm{251}}^1\times {\mathrm{10369}}^1$

素因数の和:10633

約数の個数: 40

約数和(自身を含む): 486062640

約数和(自身を除く): 277853120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 251, 502, 1004, 1255, 2008, 2510, 4016, 5020, 10040, 10369, 20080, 20738, 41476, 51845, 82952, 103690, 165904, 207380, 414760, 829520, 2602619, 5205238, 10410476, 13013095, 20820952, 26026190, 41641904, 52052380, 104104760, 208209520]

約数ペア:

[(1, 208209520), (2, 104104760), (4, 52052380), (5, 41641904), (8, 26026190), (10, 20820952), (16, 13013095), (20, 10410476), (40, 5205238), (80, 2602619), (251, 829520), (502, 414760), (1004, 207380), (1255, 165904), (2008, 103690), (2510, 82952), (4016, 51845), (5020, 41476), (10040, 20738), (10369, 20080)]