28667775

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{16619}}^1$

素因数の和:16655

約数の個数: 24

約数和(自身を含む): 49461120

約数和(自身を除く): 20793345

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 345, 575, 1725, 16619, 49857, 83095, 249285, 382237, 415475, 1146711, 1246425, 1911185, 5733555, 9555925, 28667775]

約数ペア:

[(1, 28667775), (3, 9555925), (5, 5733555), (15, 1911185), (23, 1246425), (25, 1146711), (69, 415475), (75, 382237), (115, 249285), (345, 83095), (575, 49857), (1725, 16619)]