20490632

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{199}}^1\times {\mathrm{211}}^1$

素因数の和:477

約数の個数: 32

約数和(自身を含む): 39432000

約数和(自身を除く): 18941368

約数列:

[1, 2, 4, 8, 61, 122, 199, 211, 244, 398, 422, 488, 796, 844, 1592, 1688, 12139, 12871, 24278, 25742, 41989, 48556, 51484, 83978, 97112, 102968, 167956, 335912, 2561329, 5122658, 10245316, 20490632]

約数ペア:

[(1, 20490632), (2, 10245316), (4, 5122658), (8, 2561329), (61, 335912), (122, 167956), (199, 102968), (211, 97112), (244, 83978), (398, 51484), (422, 48556), (488, 41989), (796, 25742), (844, 24278), (1592, 12871), (1688, 12139)]