20161777408

素因数分解:

$2^8\times {\mathrm{78756943}}^1$

素因数の和:78756959

約数の個数: 18

約数和(自身を含む): 40244798384

約数和(自身を除く): 20083020976

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 78756943, 157513886, 315027772, 630055544, 1260111088, 2520222176, 5040444352, 10080888704, 20161777408]

約数ペア:

[(1, 20161777408), (2, 10080888704), (4, 5040444352), (8, 2520222176), (16, 1260111088), (32, 630055544), (64, 315027772), (128, 157513886), (256, 78756943)]