128512210

素因数分解:

$2^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{64579}}^1$

素因数の和:64785

約数の個数: 16

約数和(自身を含む): 232488000

約数和(自身を除く): 103975790

約数列:

[1, 2, 5, 10, 199, 398, 995, 1990, 64579, 129158, 322895, 645790, 12851221, 25702442, 64256105, 128512210]

約数ペア:

[(1, 128512210), (2, 64256105), (5, 25702442), (10, 12851221), (199, 645790), (398, 322895), (995, 129158), (1990, 64579)]