220778896

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{81649}}^1$

素因数の和:81683

約数の個数: 30

約数和(自身を含む): 463200450

約数和(自身を除く): 242421554

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 676, 1352, 2704, 81649, 163298, 326596, 653192, 1061437, 1306384, 2122874, 4245748, 8491496, 13798681, 16982992, 27597362, 55194724, 110389448, 220778896]

約数ペア:

[(1, 220778896), (2, 110389448), (4, 55194724), (8, 27597362), (13, 16982992), (16, 13798681), (26, 8491496), (52, 4245748), (104, 2122874), (169, 1306384), (208, 1061437), (338, 653192), (676, 326596), (1352, 163298), (2704, 81649)]