20296880

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{4787}}^1$

素因数の和:4853

約数の個数: 40

約数和(自身を含む): 48090672

約数和(自身を除く): 27793792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 4787, 9574, 19148, 23935, 38296, 47870, 76592, 95740, 191480, 253711, 382960, 507422, 1014844, 1268555, 2029688, 2537110, 4059376, 5074220, 10148440, 20296880]

約数ペア:

[(1, 20296880), (2, 10148440), (4, 5074220), (5, 4059376), (8, 2537110), (10, 2029688), (16, 1268555), (20, 1014844), (40, 507422), (53, 382960), (80, 253711), (106, 191480), (212, 95740), (265, 76592), (424, 47870), (530, 38296), (848, 23935), (1060, 19148), (2120, 9574), (4240, 4787)]