80179760

素因数分解:

$2^4\times 5^1\times {\mathrm{1002247}}^1$

素因数の和:1002260

約数の個数: 20

約数和(自身を含む): 186418128

約数和(自身を除く): 106238368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1002247, 2004494, 4008988, 5011235, 8017976, 10022470, 16035952, 20044940, 40089880, 80179760]

約数ペア:

[(1, 80179760), (2, 40089880), (4, 20044940), (5, 16035952), (8, 10022470), (10, 8017976), (16, 5011235), (20, 4008988), (40, 2004494), (80, 1002247)]