13021880

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{1297}}^1$

素因数の和:1559

約数の個数: 32

約数和(自身を含む): 29438640

約数和(自身を除く): 16416760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 1297, 2008, 2510, 2594, 5020, 5188, 6485, 10040, 10376, 12970, 25940, 51880, 325547, 651094, 1302188, 1627735, 2604376, 3255470, 6510940, 13021880]

約数ペア:

[(1, 13021880), (2, 6510940), (4, 3255470), (5, 2604376), (8, 1627735), (10, 1302188), (20, 651094), (40, 325547), (251, 51880), (502, 25940), (1004, 12970), (1255, 10376), (1297, 10040), (2008, 6485), (2510, 5188), (2594, 5020)]