1555207960

素因数分解:

$2^3\times 5^1\times {\mathrm{38880199}}^1$

素因数の和:38880210

約数の個数: 16

約数和(自身を含む): 3499218000

約数和(自身を除く): 1944010040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 38880199, 77760398, 155520796, 194400995, 311041592, 388801990, 777603980, 1555207960]

約数ペア:

[(1, 1555207960), (2, 777603980), (4, 388801990), (5, 311041592), (8, 194400995), (10, 155520796), (20, 77760398), (40, 38880199)]