28384340

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{17099}}^1$

素因数の和:17191

約数の個数: 24

約数和(自身を含む): 60328800

約数和(自身を除く): 31944460

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 17099, 34198, 68396, 85495, 170990, 341980, 1419217, 2838434, 5676868, 7096085, 14192170, 28384340]

約数ペア:

[(1, 28384340), (2, 14192170), (4, 7096085), (5, 5676868), (10, 2838434), (20, 1419217), (83, 341980), (166, 170990), (332, 85495), (415, 68396), (830, 34198), (1660, 17099)]