20809902016

素因数分解:

$2^6\times {\mathrm{421}}^1\times {\mathrm{772339}}^1$

素因数の和:772772

約数の個数: 28

約数和(自身を含む): 41392789960

約数和(自身を除く): 20582887944

約数列:

[1, 2, 4, 8, 16, 32, 64, 421, 842, 1684, 3368, 6736, 13472, 26944, 772339, 1544678, 3089356, 6178712, 12357424, 24714848, 49429696, 325154719, 650309438, 1300618876, 2601237752, 5202475504, 10404951008, 20809902016]

約数ペア:

[(1, 20809902016), (2, 10404951008), (4, 5202475504), (8, 2601237752), (16, 1300618876), (32, 650309438), (64, 325154719), (421, 49429696), (842, 24714848), (1684, 12357424), (3368, 6178712), (6736, 3089356), (13472, 1544678), (26944, 772339)]