28415770

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{20443}}^1$

素因数の和:20589

約数の個数: 16

約数和(自身を含む): 51518880

約数和(自身を除く): 23103110

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 20443, 40886, 102215, 204430, 2841577, 5683154, 14207885, 28415770]

約数ペア:

[(1, 28415770), (2, 14207885), (5, 5683154), (10, 2841577), (139, 204430), (278, 102215), (695, 40886), (1390, 20443)]