399721856

素因数分解:

$2^7\times {\mathrm{3122827}}^1$

素因数の和:3122841

約数の個数: 16

約数和(自身を含む): 796321140

約数和(自身を除く): 396599284

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 3122827, 6245654, 12491308, 24982616, 49965232, 99930464, 199860928, 399721856]

約数ペア:

[(1, 399721856), (2, 199860928), (4, 99930464), (8, 49965232), (16, 24982616), (32, 12491308), (64, 6245654), (128, 3122827)]