28135820

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{14503}}^1$

素因数の和:14609

約数の個数: 24

約数和(自身を含む): 59698464

約数和(自身を除く): 31562644

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 14503, 29006, 58012, 72515, 145030, 290060, 1406791, 2813582, 5627164, 7033955, 14067910, 28135820]

約数ペア:

[(1, 28135820), (2, 14067910), (4, 7033955), (5, 5627164), (10, 2813582), (20, 1406791), (97, 290060), (194, 145030), (388, 72515), (485, 58012), (970, 29006), (1940, 14503)]