28554770

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{20543}}^1$

素因数の和:20689

約数の個数: 16

約数和(自身を含む): 51770880

約数和(自身を除く): 23216110

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 20543, 41086, 102715, 205430, 2855477, 5710954, 14277385, 28554770]

約数ペア:

[(1, 28554770), (2, 14277385), (5, 5710954), (10, 2855477), (139, 205430), (278, 102715), (695, 41086), (1390, 20543)]