13157960

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{1559}}^1$

素因数の和:1781

約数の個数: 32

約数和(自身を含む): 29764800

約数和(自身を除く): 16606840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1559, 1688, 2110, 3118, 4220, 6236, 7795, 8440, 12472, 15590, 31180, 62360, 328949, 657898, 1315796, 1644745, 2631592, 3289490, 6578980, 13157960]

約数ペア:

[(1, 13157960), (2, 6578980), (4, 3289490), (5, 2631592), (8, 1644745), (10, 1315796), (20, 657898), (40, 328949), (211, 62360), (422, 31180), (844, 15590), (1055, 12472), (1559, 8440), (1688, 7795), (2110, 6236), (3118, 4220)]