168779960

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{38711}}^1$

素因数の和:38831

約数の個数: 32

約数和(自身を含む): 383248800

約数和(自身を除く): 214468840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 38711, 77422, 154844, 193555, 309688, 387110, 774220, 1548440, 4219499, 8438998, 16877996, 21097495, 33755992, 42194990, 84389980, 168779960]

約数ペア:

[(1, 168779960), (2, 84389980), (4, 42194990), (5, 33755992), (8, 21097495), (10, 16877996), (20, 8438998), (40, 4219499), (109, 1548440), (218, 774220), (436, 387110), (545, 309688), (872, 193555), (1090, 154844), (2180, 77422), (4360, 38711)]