421639210

素因数分解:

$2^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{211879}}^1$

素因数の和:212085

約数の個数: 16

約数和(自身を含む): 762768000

約数和(自身を除く): 341128790

約数列:

[1, 2, 5, 10, 199, 398, 995, 1990, 211879, 423758, 1059395, 2118790, 42163921, 84327842, 210819605, 421639210]

約数ペア:

[(1, 421639210), (2, 210819605), (5, 84327842), (10, 42163921), (199, 2118790), (398, 1059395), (995, 423758), (1990, 211879)]