399050768

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{1312667}}^1$

素因数の和:1312694

約数の個数: 20

約数和(自身を含む): 813854160

約数和(自身を除く): 414803392

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 1312667, 2625334, 5250668, 10501336, 21002672, 24940673, 49881346, 99762692, 199525384, 399050768]

約数ペア:

[(1, 399050768), (2, 199525384), (4, 99762692), (8, 49881346), (16, 24940673), (19, 21002672), (38, 10501336), (76, 5250668), (152, 2625334), (304, 1312667)]