20800085

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{1451}}^1$

素因数の和:1564

約数の個数: 16

約数和(自身を含む): 25926912

約数和(自身を除く): 5126827

約数列:

[1, 5, 47, 61, 235, 305, 1451, 2867, 7255, 14335, 68197, 88511, 340985, 442555, 4160017, 20800085]

約数ペア:

[(1, 20800085), (5, 4160017), (47, 442555), (61, 340985), (235, 88511), (305, 68197), (1451, 14335), (2867, 7255)]