21250160

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{11549}}^1$

素因数の和:11585

約数の個数: 40

約数和(自身を含む): 51559200

約数和(自身を除く): 30309040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 11549, 23098, 46196, 57745, 92392, 115490, 184784, 230980, 265627, 461960, 531254, 923920, 1062508, 1328135, 2125016, 2656270, 4250032, 5312540, 10625080, 21250160]

約数ペア:

[(1, 21250160), (2, 10625080), (4, 5312540), (5, 4250032), (8, 2656270), (10, 2125016), (16, 1328135), (20, 1062508), (23, 923920), (40, 531254), (46, 461960), (80, 265627), (92, 230980), (115, 184784), (184, 115490), (230, 92392), (368, 57745), (460, 46196), (920, 23098), (1840, 11549)]