405339916

素因数分解:

$2^2\times {\mathrm{199}}^1\times {\mathrm{509221}}^1$

素因数の和:509424

約数の個数: 12

約数和(自身を含む): 712910800

約数和(自身を除く): 307570884

約数列:

[1, 2, 4, 199, 398, 796, 509221, 1018442, 2036884, 101334979, 202669958, 405339916]

約数ペア:

[(1, 405339916), (2, 202669958), (4, 101334979), (199, 2036884), (398, 1018442), (796, 509221)]