20379185

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{613}}^1$

素因数の和:788

約数の個数: 16

約数和(自身を含む): 25124880

約数和(自身を除く): 4745695

約数列:

[1, 5, 61, 109, 305, 545, 613, 3065, 6649, 33245, 37393, 66817, 186965, 334085, 4075837, 20379185]

約数ペア:

[(1, 20379185), (5, 4075837), (61, 334085), (109, 186965), (305, 66817), (545, 37393), (613, 33245), (3065, 6649)]