28148155

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{25943}}^1$

素因数の和:25986

約数の個数: 16

約数和(自身を含む): 39849984

約数和(自身を除く): 11701829

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 25943, 129715, 181601, 804233, 908005, 4021165, 5629631, 28148155]

約数ペア:

[(1, 28148155), (5, 5629631), (7, 4021165), (31, 908005), (35, 804233), (155, 181601), (217, 129715), (1085, 25943)]