12757720

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1619}}^1$

素因数の和:1827

約数の個数: 32

約数和(自身を含む): 28868400

約数和(自身を除く): 16110680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1619, 1970, 3238, 3940, 6476, 7880, 8095, 12952, 16190, 32380, 64760, 318943, 637886, 1275772, 1594715, 2551544, 3189430, 6378860, 12757720]

約数ペア:

[(1, 12757720), (2, 6378860), (4, 3189430), (5, 2551544), (8, 1594715), (10, 1275772), (20, 637886), (40, 318943), (197, 64760), (394, 32380), (788, 16190), (985, 12952), (1576, 8095), (1619, 7880), (1970, 6476), (3238, 3940)]