28840780

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{13477}}^1$

素因数の和:13593

約数の個数: 24

約数和(自身を含む): 61136208

約数和(自身を除く): 32295428

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 13477, 26954, 53908, 67385, 134770, 269540, 1442039, 2884078, 5768156, 7210195, 14420390, 28840780]

約数ペア:

[(1, 28840780), (2, 14420390), (4, 7210195), (5, 5768156), (10, 2884078), (20, 1442039), (107, 269540), (214, 134770), (428, 67385), (535, 53908), (1070, 26954), (2140, 13477)]