2643760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{4721}}^1$

素因数の和:4741

約数の個数: 40

約数和(自身を含む): 7026336

約数和(自身を除く): 4382576

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 4721, 9442, 18884, 23605, 33047, 37768, 47210, 66094, 75536, 94420, 132188, 165235, 188840, 264376, 330470, 377680, 528752, 660940, 1321880, 2643760]

約数ペア:

[(1, 2643760), (2, 1321880), (4, 660940), (5, 528752), (7, 377680), (8, 330470), (10, 264376), (14, 188840), (16, 165235), (20, 132188), (28, 94420), (35, 75536), (40, 66094), (56, 47210), (70, 37768), (80, 33047), (112, 23605), (140, 18884), (280, 9442), (560, 4721)]